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Tokushima University ⟩ Graduate School of Technology, Industrial and Social Sciences ⟩ Division of Science and Technology ⟩ Electrical and Electronic Engineering ⟩ Communication, Control and Measurement Systems ⟩
Tokushima University ⟩ Faculty of Science and Technology ⟩ Department of Science and Technology ⟩ Electrical and Electronic Engineering ⟩ Communication, Control and Measurement Systems ⟩
Tokushima University ⟩ Graduate School of Advanced Technology and Science ⟩ Systems Innovation Engineering ⟩ Electrical and Electronic Engineering ⟩ Electrical and Electronic Systems ⟩
Tokushima University ⟩ Graduate School of Sciences and Technology for Innovation ⟩ Science and Technology ⟩ Electrical and Electronic Engineering ⟩ Communication, Control and Measurement Systems ⟩ 		(Files for researchmap) [PDF manual] [Auto-propagate to researchmap]

Research

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Field of Study

○ Communication Engineering

Subject of Study

○ Optical fiber transmission technology, Photonic network technology (optical fiber, optical transmission, optical amplification)

Book / Paper

Book:

1. Masahumi Koga, Satoru Ohta and Atsushi Takada :
Information transmission Basics,
KYORITSU SHUPPAN.CO.,LTD, Sep. 2016.
2. 北山 研一, 大柴 小枝子, 大橋 正治, 齊藤 茂, Atsushi Takada, 戸田 裕之, 丸田 章博 and 向井 孝彰 :
OHM大学テキスト 光通信工学,
Ohmsha, Ltd., Tokyo, Dec. 2012.
3. Atsushi Takada :
レーザーハンドブック(第2版) 29章「光通信」2.3節「光増幅技術」及び3.1節「方式」,
Ohmsha, Ltd., Apr. 2005.
4. Atsushi Takada :
「波長多重通信(WDM,DWDM)における光デバイス・材料技」 2.2.6節「非線形ファイバと利得」,
Technical Information Institute Co., Ltd., Tokyo, Dec. 2000.
5. Atsushi Takada :
非線形ファイバと利得,
Technical Information Institute Co., Ltd., 東京, Dec. 2000.
6. W. Imajuku and Atsushi Takada :
In-line optical phase-sensitive amplifier with optical-PLL-controlled internal pump light source,
Optical Society of America, Dec. 1997.
7. W. Imajuku and Atsushi Takada :
Optical phase-sensitive amplification using two phase-locked light sources,
Optical Society of America, Dec. 1997.
8. Atsushi Takada and W. Imajuku :
The improvement of signal to noise ratio with nonlinear amplification in inline phase-sensitive amplifier systems,
Optical Society of America, Jul. 1997.
9. M. Saruwatari, K. Nakagawa, S. Kawanishi and Atsushi Takada :
Advanced optical communications technologies utilizing ultrashort optical pulses,,
Springer-Verlag, Dec. 1988.

Academic Paper (Judged Full Paper):

1. Yasuhiro Okamura and Atsushi Takada :
Effect of shift in refractive index of dispersive elements in waveband-shift-free optical phase conjugator based on DFG,
Optical Review, Vol.28, No.2, 174-180, 2021.
(Tokushima University Institutional Repository: 115629,   DOI: 10.1007/s10043-021-00647-7)
2. Yasuhiro Okamura and Atsushi Takada :
Waveband-shift-free optical phase conjugator based on difference-frequency generation,
Optics Express, Vol.28, No.5, 7596-7606, 2020.
(DOI: 10.1364/OE.387590,   PubMed: 32225984,   Elsevier: Scopus)
3. Takushi Kazama, Takeshi Umeki, Yasuhiro Okamura, Koji Enbutsu, Osamu Tadanaga, Atsushi Takada and Ryoichi Kasahara :
PPLN-based Low-noise Phase Sensitive Amplification Using an Optical Phase-locked Pump,
IEICE Transactions on Communications, 2020.
(DOI: 10.1587/transcom.2019OBP0005)
4. Yasuhiro Okamura and Atsushi Takada :
Simultaneous carrier extraction from wavelength-division-multiplexed phase-conjugated twin waves by using sum-frequency generation with second-order optical nonlinear medium for phase-sensitive optical amplifier repeaters,
Japanese Journal of Applied Physics, Part 1 (Special Issues), Vol.58, 2019.
(DOI: 10.7567/1347-4065/ab27b4,   Elsevier: Scopus)
5. Kimura Takeshi, Yasuhiro Okamura and Atsushi Takada :
Optical QPSK Signal Quality Degradation due to Phase Error of Pump Light in Optical Parametric Phase-Sensitive Amplifier Repeaters,
IEICE Transactions on Communications, Vol.E102-B, No.4, 810-817, 2019.
(Tokushima University Institutional Repository: 113285,   DOI: 10.1587/transcom.2018EBP3085,   Elsevier: Scopus)
6. Yasuhiro Okamura, Ikuya Nagatomi and Atsushi Takada :
Polarization Dependence of Carrier Extraction from Dual-Polarization Phase-Conjugated Twin Waves with Sum-Frequency Generation,
The Review of Laser Engineering, Vol.46, No.6, 326-330, 2018.
(Tokushima University Institutional Repository: 113286,   CiNii: 1050282813437683584)
7. Yasuhiro Okamura, Masashi Abe, Kotaro Kondo, Yuya Ohmichi, Takushi Kazama, Takeshi Umeki, Masafumi Koga and Atsushi Takada :
Optical pump phase locking to a carrier wave extracted from phase-conjugated twin waves for phase-sensitive optical amplifier repeaters,
Optics Express, Vol.24, No.23, 26300-26306, 2016.
(DOI: 10.1364/OE.24.026300,   PubMed: 27857365,   Elsevier: Scopus)
8. Ishizawa Atsushi, Nishikawa Tadashi, Mizutori Akira, Takara Hidehiko, Atsushi Takada, Sogawa Tetsuomi and Koga Masafumi :
Phase-Noise Characteristics of a 25-GHz-Spaced Optical Frequency Comb Based on a Phase- and Intensity-Modulated Laser,
Optics Express, Vol.21, No.24, 29186-29194, 2013.
(DOI: 10.1364/OE.21.029186,   PubMed: 24514470,   Elsevier: Scopus)
9. Kenichi Kitayama, Masahade Sasaki, Shoichiro Araki, Makoto Tsubokawa, Akihisa Tomita, Kyo Inoue, Katsuyoshi Harasawa, Yuki Nagasako and Atsushi Takada :
Security in Photonic Networks: Threats and Security Enhancement,
IEEE/OSA Journal of Lightwave Technology, Vol.29, No.21, 3210-3222, 2011.
(DOI: 10.1109/JLT.2011.2166248)
10. Ishizawa Atsushi, Nishikawa Tadashi, Mizutori Akira, Takara Hidehiko, Nakano Hidetoshi, Sogawa Tetsuomi, Atsushi Takada and Koga Masafumi :
Generation of 120-fs laser pulses at 1-GHz repetition rate derived from continuous wave laser diode,
Optics Express, Vol.19, No.23, 22402-22409, 2011.
(DOI: 10.1364/OE.19.022402,   PubMed: 22109116)
11. Takeshi Umeki, Osamu Tadanaga, Atsushi Takada and Masaki Asobe :
Phase sensitive degenerate parametric amplification using directly-bonded PPLN ridge waveguides,
Optics Express, Vol.19, No.7, 6326-6332, 2011.
(DOI: 10.1364/OE.19.006326,   PubMed: 21451659)
12. Etsushi Yamazaki, Fumihiko Inuzuka, Kazushige Yonenaga, Atsushi Takada and Yutaka Miyamoto :
Digital compensation of intercarrier nonlinear distortion with carrier phase locking,
IEEE/OSA Journal of Lightwave Technology, Vol.28, No.5, 828-836, 2010.
(DOI: 10.1109/JLT.2009.2033615)
13. Shuto Yamamoto, Toshihide Yoshimatsu, Hidehiko Takara, Tetsuro Komukai, Yasuaki Hashizume, Hirokazu Kubota, Hiroji Masuda, Masahiko Jinno and Atsushi Takada :
Influence of intra-channel crosstalk with frequency dependence on signal degradation in optical switch network,
IEEE/OSA Journal of Lightwave Technology, Vol.27, No.24, 5716-5722, 2009.
(DOI: 10.1109/JLT.2009.2032673)
14. Yamamoto Takashi, Komukai Tetsuro, Suzuki Kazunori and Atsushi Takada :
Multicarrier light source with flattened spectrum using phase modulators and dispersion medium,
IEEE/OSA Journal of Lightwave Technology, Vol.27, No.19, 4297-4305, 2009.
(DOI: 10.1109/JLT.2009.2023368,   CiNii: 1570854176500498176)
15. Shuto Yamamoto, Kazusige Yonenaga, Akio Sahara, Fumikazu Inuzuka and Atsushi Takada :
Achievement of Subchannel Frequency Spacing Less Than Symbol Rate and Improvement of Dispersion Tolerance in Optical OFDM Transmission,
IEEE/OSA Journal of Lightwave Technology, Vol.28, No.1, 157-163, 2009.
(DOI: 10.1109/JLT.2009.2036453,   Elsevier: Scopus)
16. A. Sahara, T. Ono, J. Yamawaku, Atsushi Takada, S. Aisawa and M. Koga :
Congestion-controlled optical burst switching network with connection guarantee: design and demonstration,
IEEE/OSA Journal of Lightwave Technology, Vol.26, No.14, 2075-2086, 2008.
(DOI: 10.1109/JLT.2008.922307)
17. E. Yamazaki, Atsushi Takada and T. Morioka :
Noise figure of parametric wavelength conversion with quasi-phase-matched LiNbO3 waveguide,
IEEE Journal of Selected Topics in Quantum Electronics, Vol.12, No.4, 536-543, 2006.
(DOI: 10.1109/JSTQE.2006.876599)
18. J. Yamawaku, E. Yamazaki, Atsushi Takada, T. Morioka and K. Suzuki :
Field demonstration of up to 640 Gb/s (64 ch x 10 Gb/s) GWP switching networks with a QPM-LN wavelength converter in JGN II test bed,
IEEE Journal of Selected Topics in Quantum Electronics, Vol.12, No.4, 529-535, 2006.
(DOI: 10.1109/JSTQE.2006.876625)
19. J. Yamawaku, H. Takara, T. Ohara, Atsushi Takada, T. Morioka, O. Tadanaga, H. Miyazawa and M. Asobe :
Low-crosstalk 103 channel x 10 Gb/s (1.03 Tb/s) wavelength conversion with a quasi-phase-matched LiNbO3 waveguide,
IEEE Journal of Selected Topics in Quantum Electronics, Vol.12, No.4, 521-528, 2006.
(DOI: 10.1109/JSTQE.2006.876150)
20. J. Yamawaku, Atsushi Takada and W. Imajuku :
Evaluation of amount of equipment on single-layer optical path networks managing multigranularity optical paths,
IEEE/OSA Journal of Lightwave Technology, Vol.23, No.6, 1971-1978, 2005.
(DOI: 10.1109/JLT.2005.849939)
21. W. Imajuku and Atsushi Takada :
Noise figure of phase-sensitive parametric amplifier using a Mach-Zehnder interferometer with lossy Kerr media and noisy pump,
IEEE Journal of Quantum Electronics, Vol.39, No.6, 799-812, 2003.
(DOI: 10.1109/JQE.2003.811089)
22. Atsushi Takada and J. H. Park :
Architecture of ultrafast optical packet switching ring network,
IEEE/OSA Journal of Lightwave Technology, Vol.20, No.12, 2306-2315, 2002.
(DOI: 10.1109/JLT.2002.806751,   CiNii: 1572261551070393344)
23. W. Imajuku and Atsushi Takada :
Gain characteristics of coherent optical amplifiers using a Mach-Zehnder interferometer with Kerr media,
IEEE Journal of Selected Topics in Quantum Electronics, Vol.35, No.11, 1657-1665, 1999.
24. E. Hashimoto, Atsushi Takada and Y. Katakagiri :
High-frequency synchronized signal generation using semiconductor lasers,
IEEE Transactions on Microwave Theory and Techniques, Vol.47, No.7, 1206-1218, 1999.
25. W. Imajuku and Atsushi Takada :
In-line optical phase-sensitive amplifier with pump light source controlled by optical phase-lock loop,
IEEE/OSA Journal of Lightwave Technology, Vol.17, No.4, 637-646, 1999.
(DOI: 10.1109/50.754794)
26. W. Imajuku and Atsushi Takada :
Theoretical analysis of system limitation for AM-DD/NRZ optical transmission systems using in-line phase-sensitive amplifiers,
IEEE/OSA Journal of Lightwave Technology, Vol.16, No.7, 1158-1170, 1998.
(DOI: 10.1109/50.701394)
27. H. Masuda, Atsushi Takada and K. Aida :
Modeling the gain degradation of high concentration erbium-doped fiber amplifiers by introducing inhomogeneous cooperative up-conversion,
IEEE/OSA Journal of Lightwave Technology, Vol.10, No.12, 1789-1799, 1992.
(DOI: 10.1109/50.202830)
28. Atsushi Takada, K. Hagimoto, K. Iwatsuki, K. Aida, K. Nakagawa and Shimizu M. :
1.8 Gbit/s transmission over 210 km using an Erbium-doped fiber laser amplifier with 20 dB repeater gain in a direct detection system,
IEICE Trans. Commun., Vol.E73, No.1, 21-26, 1990.
29. S. Kawanishi, Atsushi Takada and M. Saruwatari :
Wide-band frequency-response measurement of optical receivers using optical heterodyne detection,
IEEE/OSA Journal of Lightwave Technology, Vol.7, No.1, 92-98, 1989.
(DOI: 10.1109/50.17738)
30. Atsushi Takada, T. Sugie and M. Saruwatari :
High-speed picosecond optical pulse compression from gain-switched 1.3 μm distributed feedback-laser diode (DFB-LD) through highly dispersive single-mode fiber,
IEEE/OSA Journal of Lightwave Technology, Vol.LT-5, No.10, 1525-1533, 1987.
(DOI: 10.1109/JLT.1987.1075418)

Academic Letter:

1. Akira Tanaka, Yasuhiro Okamura and Atsushi Takada :
Amplitude Noise Suppression of BPSK Signals Using Transmission Optical Fibers and Optical Parametric Phase-Sensitive Amplifiers,
IEICE Electronics Express, Vol.19, No.13, 1-5, 2022.
(DOI: 10.1587/elex.19.20220196,   CiNii: 1390574181068788352,   Elsevier: Scopus)
2. Yasuhiro Okamura and Atsushi Takada :
Dispersion compensation of wavelength-division multiplexed signals using waveband shift-free optical phase conjugators,
IEICE Communications Express, Vol.11, No.1, 33-38, 2021.
(DOI: 10.1587/comex.2021XBL0180)
3. Yasuhiro Okamura, Masashi Abe, Kotaro Kondo, Takumi Okabe, Takushi Kazama, Akihide Sano, Takeshi Umeki, Ryoichi Kasahara and Atsushi Takada :
Pump phase-locking to fiber-transmitted QPSK phase-conjugated twin waves for non-degenerate phase-sensitive amplifier repeaters,
IEICE Communications Express, Vol.6, No.10, 566-571, 2017.
(DOI: 10.1587/comex.2017XBL0098)
4. Yasuhiro Okamura, Masafumi Koga and Atsushi Takada :
First demonstration of phase-sensitive gain stabilization by using heterodyne Costas optical phase-locked loop,
IEICE Communications Express, Vol.5, No.6, 152-157, 2016.
(DOI: 10.1587/comex.2016XBL0034)
5. A. Ishizawa, T. Nishikawa, A. Mizutori, H. Takara, S. Aozasa, A. Mori, H. Nakano, Atsushi Takada and M. Koga :
Octave-spanning frequency comb generated by 250 fs pulse train emitted from 25 GHz externally phase-modulated laser diode for carrier-envelope-offset-locking,
Electronics Letters, Vol.46, No.19, 1343-1344, 2010.
(DOI: 10.1049/el.2010.2228)
6. Shunichi Souma, Kunihiko Mori, Hiroji Masuda, Atsushi Takada, Seno Kazunori, Kenya Suzuki and Naoki Ooba :
Flexible chromatic dispersion compensation over entire L-band for over 40-Gb/s WDM transparent networks using multichannel tunable optical dispersion compensator,
IEEE Photonics Technology Letters, Vol.21, No.17, 1271-1273, 2009.
(DOI: 10.1109/LPT.2009.2025661)
7. A Mizutori, Y Nishizato, K Mori, T Yamamoto, K Suzuki, Atsushi Takada and M Koga :
Laser diode optical frequency stabilization technique on ITU-T frequency grid employing modulated sideband light,
Electronics Letters, Vol.45, No.13, 683-684, 2009.
(DOI: 10.1049/el.2009.0910)
8. M. Asobe, T. Umeki, O. Tadanaga, K. Yoshino, E. Yamazaki and Atsushi Takada :
Low crosstalk and variable wavelength conversion using multiple QPM LiNbO3 waveguide module,
Electronics Letters, Vol.45, No.10, 519-521, 2009.
(DOI: 10.1049/el.2009.3672)
9. T. Kobayashi, A. Sano, E. Yamada, Y. Miyamoto, H. Takara and Atsushi Takada :
Electro-optically multiplexed 110 Gbit/s optical OFDM signal transmission over 80 km SMF without dispersion compensation,
Electronics Letters, Vol.44, No.3, 225-226, 2008.
(DOI: 10.1049/el:20082534)
10. T. Yamamoto, T. Komukai, K. Suzuki and Atsushi Takada :
Spectrally flattened phase-locked multi-carrier light generator with phase modulators and chirped fibre Bragg grating,
Electronics Letters, Vol.43, No.19, 1040-?1042, 2007.
(DOI: 10.1049/el:20071505)
11. F. Inuzuka, E. Yamazaki, K. Yonenaga and Atsushi Takada :
Performance of nonlinear interchannel crosstalk pre-compensation at zero-dispersion wavelength using carrier phase-locked WDM,
Electronics Letters, Vol.43, No.13, 729-730, 2007.
(DOI: 10.1049/el:20070907)
12. E. Yamazaki, F. Inuzuka, K. Yonenaga, Atsushi Takada and M. Koga :
Compensation of interchannel crosstalk induced by optical fiber nonlinearity in carrier phase-locked WDM System,
IEEE Photonics Technology Letters, Vol.19, No.1, 9-11, 2007.
(DOI: 10.1109/LPT.2006.888032,   CiNii: 1363107371236829312)
13. E. Yamazaki, G. Weichenberg and Atsushi Takada :
Polarisation-insensitive parametric wavelength conversion without tunable filters for converted light extraction,
Electronics Letters, Vol.42, No.6, 365-367, 2006.
(DOI: 10.1049/el:20064412,   CiNii: 1572543023917333248)
14. Atsushi Takada, E. Yamazaki and T. Kobayashi :
Repetition rate variable optical pulse generation using an optical frequency shifter,
Electronics Letters, Vol.41, No.4, 205-206, 2005.
(DOI: 10.1049/el:20057877)
15. J. Yamawaku, E. Yamazaki and Atsushi Takada :
Field trial of virtual-grouped-wavelength-path switching with QPM-LN waveband converter and PLC matrix switch in JGN II test bed,
Electronics Letters, Vol.41, No.2, 88-89, 2005.
(DOI: 10.1049/el:20057087,   CiNii: 1362544419202207488)
16. E. Yamazaki, Atsushi Takada, J. Yamawaku, H. Miyazawa, O. Tadanaga and M. Asobe :
On-grid wavelength conversion and multi-carrier generation with quasi-phase-matched LiNbO3 waveguide optical loop circuit,
Electronics Letters, Vol.40, No.19, 1215--1216, 2004.
(DOI: 10.1049/el:20045445)
17. E. Yamazaki, Atsushi Takada, J. Yamawaku, O. Tadanaga and M. Asobe :
Widely tunable multichannel wavelength conversion using multiple wavelength quasi-phase-matched LiNbO3 waveguide,
Electronics Letters, Vol.40, No.8, 492--493, 2004.
(DOI: 10.1049/el:20040345)
18. J. Yamawaku, H. Takara, T. Ohara, K. Sato, Atsushi Takada, O. Tadanaga, H. Miyazawa and M. Asobe :
Simultaneous 25 GHz-spaced DWDM wavelength conversion of 1.03 Tbit/s (103 x 10 Gbit/s) signals in PPLN waveguide,
Electronics Letters, Vol.39, No.15, 1144-1145, 2003.
(DOI: 10.1049/el:20030719,   CiNii: 1572543026618763904)
19. K. Akimoto, Y. Katagiri, Atsushi Takada and S. Nagaoka :
Micromechanically controlled GT interferometer for optical-pulse narrowing,
Sensors and Actuators A: Physical, Vol.82, No.1-3, 79-82, 2000.
(DOI: 10.1016/S0924-4247(99)00313-1,   Elsevier: Scopus)
20. W. Imajuku, Atsushi Takada and Y. Yamabayashi :
Inline coherent optical amplifier with noise figure lower than 3dB quantum limit,
Electronics Letters, Vol.36, No.1, 63-64, 2000.
(DOI: 10.1049/el:20000032,   Elsevier: Scopus)
21. W. Imajuku, Atsushi Takada and Y. Yamabayashi :
Low-noise amplification under the 3 dB noise figure in high-gain phase-sensitive fibre amplifier,
Electronics Letters, Vol.35, No.22, 1954-1955, 1999.
22. K. Akimoto, Yoshitada Katagiri, Atsushi Takada and S. Nagaoka :
Micromechanically controlled GT interferometer for ultrashort optical-pulse narrowing,
Electronics Letters, Vol.35, No.11, 918-920, 1999.
23. E. Hashimoto, Atsushi Takada and Yoshitada Katagiri :
Synchronization of subterahertz optical pulse train from PLL-controlled colliding pulse modelocked semiconductor laser,
Electronics Letters, Vol.34, No.6, 580-582, 1998.
24. Atsushi Takada and W. Imajuku :
In-line optical phase-sensitive amplifier employing pump laser injection-locked to input signal light,
Electronics Letters, Vol.34, No.3, 274-275, 1998.
25. Yoshitada Katagiri and Atsushi Takada :
Supermode selection of a subterahertz-harmonic colliding-pulse mode-locked semiconductor laser using continuous-wave light injection,
IEEE Photonics Technology Letters, Vol.9, No.12, 1564-1566, 1997.
(DOI: 10.1109/68.643262)
26. W. Imajuku and Atsushi Takada :
In-line phase-sensitive amplifier with optical-PLL-controlled internal pump light source,
Electronics Letters, Vol.33, No.25, 2155-2156, 1997.
27. Yoshitada Katagiri and Atsushi Takada :
A harmonic colliding-pulse mode-locked semiconductor laser for stable subterahertz pulse generation,
IEEE Photonics Technology Letters, Vol.9, No.11, 1442-1444, 1997.
(DOI: 10.1109/68.634702)
28. Atsushi Takada and W. Imajuku :
Linewidth narrowing and optical phase control of mode-locked semiconductor ring laser employing optical injection locking,
IEEE Photonics Technology Letters, Vol.9, No.10, 1328-1330, 1997.
(DOI: 10.1109/68.623252)
29. W. Imajuku and Atsushi Takada :
Optical phase-sensitive amplification using two phase-locked light sources,
Electronics Letters, Vol.33, No.16, 1403-1404, 1997.
30. W. Imajuku and Atsushi Takada :
Reduction of fiber-nonlinearity-enhanced amplifier noise by means of phase-sensitive amplifiers,
Optics Letters, Vol.22, No.1, 31-33, 1997.
31. Yoshitada Katagiri, Atsushi Takada, S. Nishi, H. Abe, Y. Uenishi and S. Nagaoka :
Repetition-rate tunable micromechanical passively mode-locked semiconductor laser,
Electronics Letters, Vol.32, No.25, 2354-2355, 1996.
32. Yoshitada Katagir and Atsushi Takada :
Synchronized pulse-train generation from passively mode-locked semiconductor lasers by a phase-locked loop using optical modulation sidebands,
Electronics Letters, Vol.32, No.20, 1892-1894, 1996.
33. Atsushi Takada and W. Imajuku :
Amplitude noise suppression using a high gain phase sensitive amplifier as a limiting amplifier,
Electronics Letters, Vol.32, No.7, 677-679, 1996.
34. K. Sato, K. Wakita, I. Kotaka, Y. Kondo, M. Yamamoto and Atsushi Takada :
Monolithic strained-InGaAsP multiple-quantum-well lasers with integrated electroabsorption modulators for active mode locking,
Applied Physics Letters, Vol.65, No.1, 1-3, 1994.
35. Atsushi Takada, K. Sato, M. Saruwatari and M. Yamamoto :
Pulse width tunable subpicosecond pulse generation from an actively modelocked monolithic MQW laser / MQW electroabsorption modulator,
Electronics Letters, Vol.30, No.11, 898-900, 1994.
36. H. Takara, Atsushi Takada and M. Saruwatari :
A highly efficient two-stage Er3+-doped optical fiber amplifier employing an optical gate to effectively reduce ASE,
IEEE Photonics Technology Letters, Vol.4, No.3, 241-243, 1992.
(DOI: 10.1109/68.122379)
37. H. Masuda and Atsushi Takada :
High gain two-stage amplification with Erbium-doped fibre amplifier,
Electronics Letters, Vol.26, No.10, 661-662, 1990.
38. Atsushi Takada, K. Iwatsuki and M. Saruwatari :
Picosecond laser diode pulse amplification up to 12 W by laser diode pumped Erbium-doped fiber,
IEEE Photonics Technology Letters, Vol.2, No.2, 122-124, 1990.
(DOI: 10.1109/68.47068)
39. Atsushi Takada and H. Miyazawa :
30 GHz picosecond pulse generation from actively mode-locked erbium-doped fibre laser,
Electronics Letters, Vol.26, No.3, 216-217, 1990.
40. H. Masuda and Atsushi Takada :
Picosecond optical pulse generation from mode-locked phased laser diode array,
Electronics Letters, Vol.25, No.21, 1418-1419, 1989.
41. K. Iwatsuki, Atsushi Takada, S. Nishi and Saruwatari M. :
3 GHz optical soliton propagation using all laser diodes,
Electronics Letters, Vol.25, No.15, 1003-1005, 1989.
42. K. Hagimoto, K. Iwatsuki, Atsushi Takada, M. Nakazawa, M. Saruwatari, K. Aida, K. Nakagawa and M. Horiguchi :
250 km Nonrepeated transmission experiment at 1.8 Gb/s using LD pumped Er3+-doped fibre amplifiers in IM/direct detection system,
Electronics Letters, Vol.25, No.10, 662-663, 1989.
43. K. Inoue, H. Toba, N. Shibata, K. Iwatsuki, Atsushi Takada and M. Shimizu :
Mutual signal gain saturation in Er3+-doped fibre amplifier around 1.54 μm wavelength,
Electronics Letters, Vol.25, No.9, 594-595, 1989.
44. K. Iwatsuki, Atsushi Takada and M. Saruwatari :
Optical soliton propagation using 3 GHz gain-switched 1.3 ?m laser diodes,
Electronics Letters, Vol.24, No.25, 1572-1574, 1988.
45. Atsushi Takada and M. Saruwatari :
100 Gbit/s optical signal generation by time-division multiplication of modulated and compressed pulses from gain-switched distributed feedback (DFB) laser diode,
Electronics Letters, Vol.24, No.23, 1406-1408, 1988.
46. T. Sugie, Atsushi Takada and M. Saruwatari :
Effective technique for measuring intrinsic bandwidths of DFB-LDs utilizing a satellite mode induced by far-end reflection,
Applied Optics, Vol.26, No.13, 2502-2504, 1987.
47. K. Iwatsuki, M. Saruwatari and Atsushi Takada :
Ultrafast optical multi/demultiplexer utilising optical Kerr effect in polarization-maintaining single-mode fibres,
Electronics Letters, Vol.23, No.9, 453-454, 1987.
48. Atsushi Takada, T. Sugie and M. Saruwatari :
Transform-limited 5.6ps optical pulse generation at 12 GHz repetition rate from gain-switched distributed feedback laser diode by employing pulse compression technique,
Electronics Letters, Vol.22, No.25, 1347-1348, 1986.
49. Atsushi Takada, T. Sugie and M. Saruwatari :
Picosecond optical pulse compression from gain-switched 1.3 μm distributed-feedback laser diode through highly dispersive single-mode fibre,
Electronics Letters, Vol.21, No.21, 969-971, 1985.

Review, Commentary:

1. Atsushi Takada, Yasuhiro Okamura and Masafumi Koga :
光パラメトリック増幅と低雑音位相感応光中継増幅,
O plus E, Vol.37, No.8, 628-635, Aug. 2015.
(CiNii: 1520010379931728640)
2. Atsushi Takada :
2014年ソサイエティ大会の開催地から,
通信ソサイエティマガジン B-Plus, No.30, 137, Sep. 2014.
3. 高良 秀彦 and Atsushi Takada :
位相同期マルチキャリア光発生・WDM伝送技術,
O plus E, Vol.29, No.8, 11-16, Aug. 2007.
4. Atsushi Takada and 神野 正彦 :
光ネットワークと制御技術,
OPTRONICS, Vol.25, No.294, Jun. 2006.
5. 萩本 和男, 山林 由明, 盛岡 敏夫 and Atsushi Takada :
光ネットの研究を支える「テストベッド」,
日経コミュニケーション, 98-99, Jan. 2006.
6. Atsushi Takada :
2002年光学界の展望(X節 光通信),
JAPANESE JOURNAL OF OPTICS, Vol.32, No.4, 219, Apr. 2003.
7. Atsushi Takada and 今宿 亙 :
コヒーレント光増幅器,
The Review of Laser Engineering, Vol.29, 599-604, Sep. 2001.
8. Atsushi Takada :
量子限界を破る光増幅器,
超精密, Vol.10, 93-100, Dec. 2000.
9. 今宿 亙 and Atsushi Takada :
コヒーレント光増幅器,
OYO BUTURI, Vol.69, No.11, 1320-1324, Nov. 2000.

Proceeding of International Conference:

1. Yasuhiro Okamura and Atsushi Takada :
Influence of Phase Constant Difference between Dispersive Elements in Difference-Frequency Generation Based Optical-Phase-Conjugation Circuit,
24th Microoptics Conference (MOC2019), P-75, Toyama, Nov. 2019.
(Elsevier: Scopus)
2. Yasuhiro Okamura, Yusuke Seto, Naotaka Ishimura and Atsushi Takada :
Transmission Performance of 16QAM Signal Interleaved with Amplified Reference Light,
24th Microoptics Conference (MOC2019), P-57, Toyama, Nov. 2019.
(Elsevier: Scopus)
3. Kazama Takushi, Umeki Takeshi, Yasuhiro Okamura, Enbutsu Koji, Tadanaga Osamu, Atsushi Takada and Kasahara Ryoichi :
Low-Noise Phase Sensitive Amplification Using an Optical Phase-Locked Pump,
24th Optoelectronics and Communications Conference (OECC 2019)/International Conference on Photonics in Switching and Computing 2019 (PSC 2019), Hakata, Jul. 2019.
(DOI: 10.23919/PS.2019.8818030,   Elsevier: Scopus)
4. Yasuhiro Okamura, Noami Shunsuke and Atsushi Takada :
Wavelength-Conversion Free Optical Phase Conjugator Based on Difference Frequency Generation,
24th Optoelectronics and Communications Conference (OECC 2019)/International Conference on Photonics in Switching and Computing 2019 (PSC 2019), Hakata, Jul. 2019.
(DOI: 10.23919/PS.2019.8818009,   Elsevier: Scopus)
5. Yasuhiro Okamura, Kenta Kondou and Atsushi Takada :
Optical Carrier Extraction from Wavelength-Division Multiplexed Phase-Conjugate Twin Waves for Phase-Sensitive Optical Amplifier Repeaters,
23rd Microoptics Conference, P-13, Taipei, Oct. 2018.
6. Yasuhiro Okamura, Ikuya Nagatomi, Shinsuke Sharyo and Atsushi Takada :
Novel Carrier Extraction for Pump Phase-Locking to Polarized PDM-PCTWs in Phase-Sensitive Optical Amplifier Repeaters,
2018 7th IEEE International Conference on Photonics (ICP2018), Langkawi, Apr. 2018.
(DOI: 10.1109/ICP.2018.8533203,   Elsevier: Scopus)
7. Takeshi Umeki, Takushi Kazama, Takayuki Kobayashi, Shigehiro Takasaka, Yasuhiro Okamura, Koji Enbutsu, Osamu Tadanaga, Hirokazu Takenouchi, Ryuichi Sugizaki, Atsushi Takada, Ryoichi Kasahara and Yutaka Miyamoto :
Polarization-diversity In-line Phase Sensitive Amplifier for Simultaneous Amplification of Fiber-transmitted WDM PDM-16QAM Signals,
2018 Optical Fiber Communication Conference (OFC), Vol.F84-OFC, No.2018, M3E.4, San Diego, Mar. 2018.
(DOI: 10.1364/OFC.2018.M3E.4,   Elsevier: Scopus)
8. Yasuhiro Okamura, Kotaro Kondo, Takumi Okabe, Masafumi Koga and Atsushi Takada :
Pump Phase-Locking to Phase-Conjugated Twin Waves with Heterodyne OPLL Assisted by Sum-Frequency and Second Harmonic Generation for ND-PSAs,
The 22nd Microoptics Conference (MOC2017), P-96, Tokyo, Nov. 2017.
(DOI: 10.23919/MOC.2017.8244618,   Elsevier: Scopus)
9. Yasuhiro Okamura, Hayaki Uno, Masanori Hanawa and Atsushi Takada :
Quadrature Imbalance Compensation for M-ary Modulated Signals Interleaved with Reference Light,
The 22nd Microoptics Conference (MOC2017), 328-329, Tokyo, Nov. 2017.
(DOI: 10.23919/MOC.2017.8244619,   Elsevier: Scopus)
10. Yasuhiro Okamura, Shingo Seki and Atsushi Takada :
Pump Phase-Locking Method Dependence of ND- PSA Repeaters on Multi-Span Transmission of QPSK-PCTWs in Dispersion Compensated Links,
2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC), P3-040, Singapore, Aug. 2017.
(DOI: 10.1109/OECC.2017.8115034,   Elsevier: Scopus)
11. Yasuhiro Okamura, Masashi Abe, Kotaro Kondo, Yuya Ohmichi, Takushi Kazama, Takeshi Umeki, Masafumi Koga and Atsushi Takada :
First Demonstration of Non-Degenerate Phase- Sensitive Amplification with Pump Light Recovered by Optical Phase-Locked Loop,
The 2016 IEEE Photonics Conference (IPC 2016), 511-512, Waikoloa, Oct. 2016.
(DOI: 10.1109/IPCon.2016.7831205,   Elsevier: Scopus)
12. Yasuhiro Okamura, Kotaro Kondo, Yuya Ohmichi, Masafumi Koga and Atsushi Takada :
Optical phase-locking among phase-conjugated twin waves and free-running pump by using sum-frequency and second harmonic generation assisted OPLL for ND-PSA repeaters,
Conference on Lasers and Electro-Optics 2016 (CLEO 2016), SF1G.6, San Jose, Jun. 2016.
(DOI: 10.1364/CLEO_SI.2016.SF1G.6,   Elsevier: Scopus)
13. ALOUNSOULIYA ALY, Yasuhiro Okamura and Atsushi Takada :
Noise characteristics of non-degenerate optical parametric phase-sensitive amplifier with gain saturation and distributed loss in gain medium,
The 2016 IEEE 6th International Conference on Photonics (ICP2016), Sarawak, Malaysia, Mar. 2016.
(DOI: 10.1109/ICP.2016.7510033,   Elsevier: Scopus)
14. Yasuhiro Okamura, Kotaro Kondo, Shingo Seki, Yuya Ohmichi, Masafumi Koga and Atsushi Takada :
Frequency Nondegenerate Optical Parametric Phase-sensitive Amplifier Repeater by Using Recovered Pump Carrier Generated from Phase-conjugated Twin Waves,
The Optical Fiber Communication Conference and Exhibition 2016 (OFC 2016), Th2A.7, Anaheim, Mar. 2016.
(DOI: 10.1364/ofc.2016.th2a.7,   Elsevier: Scopus)
15. Yasuhiro Okamura, Naotaka Ishimura, Yusuke Mitsui, Masanori Hanawa and Atsushi Takada :
Influence of Chromatic Dispersion on Optical Transmission of 16QAM Signals Interleaved with Reference Light,
20th Microoptics Conference (MOC 2015), H-80, Fukuoka, Oct. 2015.
(DOI: 10.1109/MOC.2015.7416487,   Elsevier: Scopus)
16. Yasuhiro Okamura and Atsushi Takada :
Degradation of Signal Quality Due to Pump-Phase Fluctuation on Non-Degenerated Fiber Parametric Phase-Sensitive Amplifier Repeaters,
20th Microoptics Conference (MOC 2015), H-79, Fukuoka, Oct. 2015.
(DOI: 10.1109/MOC.2015.7416486,   Elsevier: Scopus)
17. Yasuhiro Okamura, Koryo Higashiyama, Masafumi Koga and Atsushi Takada :
Optical phase lock loop circuit for Non-degenerate optical parametric phase sensitive amplifiers with wide signal-idler optical frequency spacing,
Conference on Lasers and Electro-Optics 2015 (CLEO 2015), SM1M-2, San Jose, May 2015.
(DOI: 10.1364/CLEO_SI.2015.SM1M.2,   Elsevier: Scopus)
18. Yasuhiro Okamura, Atsushi Takada and Masanori Hanawa :
Influence of I/Q imbalance on Multi-level modulated Signals Interleaved with Reference Light,
International Conference on Optical Internet 2014 (COIN 2014), Cheju, Aug. 2014.
19. Atsushi Takada, Koryo Higashiyama, Eiji Hamada, Yasuhiro Okamura, Akira Mizutori and Masafumi Koga :
Optical phase locking between pump and multiple-carrier signal lights in frequency-nondegenerate parametric phase-sensitive amplifier,
OptoElectronics and Communication Conference and Australian Conference on Optical Fibre Technology 2014 (OECC/ACOFT 2014), Jul. 2014.
20. Yasuhiro Okamura and Atsushi Takada :
Nonlinear Degradation in 10-Gbit/s Nyquist BPSK Signal Transmission Systems with In-Line Phase-Sensitive Amplifiers,
OptoElectronics and Communication Conference and Australian Conference on Optical Fibre Technology 2014 (OECC/ACOFT 2014), Jul. 2014.
21. Sakai Yuya, Sugamoto Masamichi, Nakatani Eiki, Mizutori Akira, Atsushi Takada and Koga Masahumi :
Experiment on Phase Sensitive Amplification of BPSK Signal Using Phase-lock Costas Loop Circuit,
The 18th OptoElectronics and Communications Conference (OECC), Vol.TuPR-7, No.TuPR, 7, Kyoto, Jul. 2013.
22. Ishizawa Atsushi, Nishikawa Tadashi, Mizutori Akira, Takara Hidehiko, Atsushi Takada, Sogawa Tetsuomi and Koga Masafumi :
Phase Noise Characterization of a 25-GHz-Spaced Optical Frequency Comb from a Phase-Modulated Laser,
the Conference on Lasers and Electro-Optics (CLEO) 2013, Vol.CTu1I.7, No.1I, 7, San Jose, Jun. 2013.
23. Ishizawa A., Nishikawa T., Mizutori A., Takara H., Nakano H., Sogawa T., Atsushi Takada and Koga M. :
Sub-100-fs optical pulse generation at 1-GHz repetition rate with an externally phase-modulated continuous wave laser diode,
Ultrafast Optics VIII, Vol.Tu, No.12, Tu12, Monterey, U.S.A., Sep. 2011.
24. Kitayama K., Sasaki M., Araki S., Tsubokawa M., Tomita A., Inoue K., Haramasa K., Nagasako Y. and Atsushi Takada :
A novel conceptual model of secure photonic networks,
2011 13th International Conference on Transparent Optical Networks (ICTON), 1-4, Stochholm, Sweden, Jun. 2011.
25. Koga Msahumi, Atsushi Takada, Ishizawa Atsushi, Nishikawa Tadashi and Takara Hidehiko :
Proposal of Optical Frequency Synchronized Photonic Network based on Carrier-Envelope Offset Phase Locked Frequency Comb,
Korea-Japan Workshop on Beyond 100G, Jeju island , Korea, Jun. 2011.
26. Umeki Takeshi, Tadanaga Osamu, Atsushi Takada and Asobe Masaki :
Phase Sensitive Degenerate Parametric Amplification Using Highly Efficient PPLN Ridge Waveguides,
The optical fiber communication conference, Vol.O, No.Tu, U6, Los Angeles, Mar. 2011.
27. Nishikawa T., Ishizawa A., Mizutori A., Takara H., Nakano H., Atsushi Takada and Koga M. :
Approach to achieving a wider mode spacing carrier-envelope phase-locked frequency comb at telecommunications wavelength region,
The 2nd Shanghai Tokyo Advanced Research Symposium on Ultrafast Intense Laser Science, Xiamen, China, May 2010.
28. A. Ishizawa, T. Nishikawa, A. Mizutori, H. Takara, S. Aozasa, A. Mori, H. Nakano, Atsushi Takada and M. Koga :
Novel approach to achieve a carrier-envelope-phase-locked frequency comb with 25-GHz mode spacing,
Conference on Lasers and Electro-Optics / Quantum Electronics and Laser Science Conference 2010, No.CWJ4, San Jose, U.S.A., May 2010.
29. F. Inuzuka, K. Yonenaga, E. Yamazaki, S. Yamamoto and Atsushi Takada :
Reduction of Nonlinear Inter-channel Crosstalk Penalty for DQPSK signal in Carrier Phase Locked WDM,
European Conference on Optical Communication, No.2.3.5, Viena, Sep. 2009.
30. K. Yonenaga, Atsushi Takada, Y. Aoki and S. Kinoshita :
Demonstration of 100 Tbit/s Scale Multiple Granularity OXC Architecture,
European Conference on Optical Communication, No.2.5.5, Viena, Sep. 2009.
31. K. Yonenaga and Atsushi Takada :
Requirements and Enabling Technologies for Optical Cross-Connect Node Based on Wavebands,
Pacific Rim Conference on Lasers and Eectro-Optics, No.WH3-1, Shanghai, Aug. 2009.
32. S. Yamamoto, K. Yonenaga, A. Sahara, F. Inuzuka and Atsushi Takada :
Experiment on optical OFDM transmission with frequency spacing of subchannels at 80% of symbol rate,
Opt-Electronics and Communications Conference, No.ThJ4, Hong Kong, Jul. 2009.
33. A. Sahara, Y. Tsukishima, T. Takahashi, Y. Okubo, K. Yamada, K. Matsuda and Atsushi Takada :
Demonstration of colorless and directed/directionless ROADMs in Router networkDemonstration of colorless and directed/directionless ROADMs in Router network,
Optical Fiber Communication Conference 2009, No.MND2, San Diego, U. S. A., Mar. 2009.
34. K. Yonenaga, F. Inuzuka, Y. Sun, Y. Aoki, K. Sone, A. Sano, K. Mori, T. Ono, Y. Kai, S. Yoshida, G. Nakagawa, Y. Sakai, Atsushi Takada and S. Kinoshita :
Demonstration of 10-Tbit/s Multi-Granularity Optical Cross-Connect Node toward 100-Tbit/s Scalability,,
Optical Fiber Communication Conference 2009, No.Post Deadline Paper-C4, San Diego, U.S.A., Mar. 2009.
35. K. Yonenaga, F. Inuzuka, S. Yamamoto, H. Takara, B. Kozicki, T. Yoshimatsu, Atsushi Takada and M. Jinno :
Bit-Rate-Flexible All-Optical OFDM Transceiver Using Variable Multi-Carrier Source and DQPSK/DPSK Mixed Multiplexing,
Optical Fiber Communication Conference 2009, No.OWM1, San Diego, U.S.A., Mar. 2009.
36. Sun Yongmei, T. Ono and Atsushi Takada :
Adaptive Delay-Difference Compensation based on Peer Detection for 40-Gb/s/ch Optical Virtual Concatenation,
Optical Fiber Communication Conference, No.NThA3, San Diego, U.S.A., Mar. 2009.
37. Atsushi Takada, E. Yamazaki, F. Inuzuka and K. Yonenaga :
Nonlinear inter channel crosstalk compensation using pre /post signal processing in carrier phase locked WDM,
in Proc. Asia Pacific Optical Communication Conference 2008, Vol.-, No.7136 51, -, Hangzhou, Oct. 2008.
38. M. Jinno, H. Takara, B. Kozicki, Y. Tsukishima, T. Yoshimatsu, T. Kobayashi, Y. Miyamoto, K. Yonenaga, Atsushi Takada, O. Ishida and S. Matsuoka :
Demonstration of novel spectrum efficient elastic optical path network with per channel variable capacity of 40 Gb/s to over 400 Gb/s,
in Proc. European Conference of Optical Communication (ECOC) 2008, Vol.7, No.Th.3.F.6, 49-50, Brussels, Belgium, Sep. 2008.
39. M. Asobe, T. Umeki, O. Tadanaga, K. Yoshino, E. Yamazaki and Atsushi Takada :
Multiple QPM LiNbO3 waveguide module for variable batch wavelength conversion with low crosstalk,
in Proc. of European Conference of Optical Communication (ECOC) 2008, Vol.4, No.Th.2.C.6, 89-90, Brussels, Belgium, Sep. 2008.
40. T. Ono, Y. Sun and Atsushi Takada :
Demonstration of master slave type deskew function for optical virtual concatenation using OTU3 multiframe identification,
in Proc. of European Conference of Optical Communication (ECOC) 2008, Vol.3, No.We.1.B.6, 21-22, Brussels, Belguim, Sep. 2008.
41. Atsushi Takada :
R&D of High Performance Photonic Node with Multi-Granularity Switching Capability,
Workshop presentation in Inter national conference on Photonic in Switching, Vol.WS1, No.4, Sappro, Japan, Aug. 2008.
42. Tetsuo Takahashi, Akio Sahara and Atsushi Takada :
Recent progress and future prospects for advanced photonic network,
Inter national conference on Photonic in Switching, Vol.S, No.04-05, Sappro, Japan, Aug. 2008.
43. M. Nakamura, K. Yonenaga, K. Suzuki, T. Yamamoto, Atsushi Takada and A. Okada :
A 10 Gb/s adaptive EDC IC with integrated dispersion monitor for optical duobinary transmission,
in Proc. 2008 IEEE/LEOS Summer Topical Meetings, Vol.-, No.TuD1, 219-220, Acapulco, Mexico, Jul. 2008.
(DOI: 10.1109/LEOSST.2008.4590568,   Elsevier: Scopus)
44. T. Yoshimatsu, Y. Hashizume, S. Yamamoto, H. Takara, H. Kubota, E. Yoshida, Y. Miyamoto, Atsushi Takada, M. Jinno and T. Itoh :
Comparison of 44.6 Gbit/s NRZ and RZ DQPSK format in 50 GHz spacing ROADM system,
in Proc. Optoelectronics and Communications Conference (OECC) 2008, Vol.-, No.We A3, -, Sydney, Australia, Jul. 2008.
45. K. Yonenaga, K. Suzuki, T. Yamamoto, Atsushi Takada, A. Kanda and M. Nakamura :
Sensitivity improvement in 10 Gbit/s ODB receiver using adaptive FFE with integrated dispersion monitor,
in Proc. Optoelectronics and Communications Conference (OECC) 2008, Vol.-, No.Tu A2, -, Sydney, Australia, Jul. 2008.
46. Y. Sun, T. Ono and Atsushi Takada :
Dynamic skew compensation for 40 Gb/s/ch multi wavelength parallel transmission with OTN frame,
in Proc. Optoelectronics and Communications Conference (OECC) 2008, Vol.-, No.WeL 2, -, Sydney, Australia, Jul. 2008.
47. E. Yamazaki, F. Inuzuka, K. Yonenaga, Atsushi Takada and Y. Miyamoto :
Nonlinearity compensation in WDM transmission,
in Proc. IEEE/LEOS Sum. Top. Meeting 2008, Vol.-, No.TuE4.1, 165-166, Acapulco, Mexico, Jul. 2008.
(DOI: 10.1109/LEOSST.2008.4590541,   Elsevier: Scopus)
48. Y. Sun, T. Ono, Atsushi Takada and M. Tomizawa :
Wavelength group based optical virtual concatenation technique for data intensive and latency sensitive applications,
in Proc. ICC 2008 13th International Workshop on Computer Aided Modeling Analysis and Design of Communication Links and Networks, 179-183, Beijin, Jun. 2008.
49. K. Yonenaga, A. Sano, E. Yamazaki, F. Inuzuka, Y. Miyamoto, Atsushi Takada and T. Yamada :
100 Gbit/s all optical OFDM transmission using 4 x 25 Gbit/s optical duobinary signals with phase controlled optical sub carriers,
in Proc. Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference (OFC/NFOEC) 2008, Vol.-, No.JThA48, -, San Diego, U.S.A., Feb. 2008.
50. F. Inuzuka, E. Yamazaki, K. Yonenaga and Atsushi Takada :
Nonlinear inter channel crosstalk compensation using electronic pre distortion in carrier phase locked WDM,
in Proc. Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference (OFC/NFOEC) 2008, Vol.-, No.OTuO5., -, San Diego, U.S.A., Feb. 2008.
51. E. Yamazaki, F. Inuzuka, K. Yonenaga, T. Yamamoto and Atsushi Takada :
Carrier phase control for FWM cross talk suppression in dense WDM transmission at low dispersion wavelength,
in Proc. European Conference of Optical Communication (ECOC) 2007, Vol.-, No.08.3.5, -, Berlin, Germany, Sep. 2007.
52. T. Kobayashi, A. Sano, E. Yamada, Y. Miyamoto, H. Takara and Atsushi Takada :
Electro optically subcarrier multiplexed 110 Gb/s OFDM signal transmission over 80 km SMF without dispersion compensation,
in Proc. Optoelectronics and Communications Conference and the International Conference on Integrated Optics and Optical Fiber Communication (OECC/IOOC) 2007, Vol.-, No.D1 6, -, Yokohama, Japan, Jul. 2007.
53. T. Yamamoto, T. Komukai, K. Suzuki and Atsushi Takada :
Multi carrier light generator using phase modulators and chirped fiber bragg grating,
in Proc. Optoelectronics and Communications Conference and the International Conference on Integrated Optics and Optical Fiber Communication (OECC/IOOC) 2007, Vol.-, No.13D3 2, 668-669, Yokohama, Japan, Jul. 2007.
54. Atsushi Takada and M. Koga :
Multi granularity OXC Architecture,
in Proc. Optical Fiber Communication conference (OFC) 2007, Vol.-, No.OThR4, Anaheim, Mar. 2007.
55. T. Ono, Atsushi Takada, M. Koga, T. Murooka, H. Takahashi, K. Hagimoto, S. Takizawa and S. Matsuoka :
Demonstration of collective communication in grid computing on optical burst switching network with congestion control,
in Proc. European Conference of Optical Communication (ECOC) 2006, Vol.-, No.Tu3.6.3, -, Sep. 2006.
56. S. M. Koh, S. Yoshima, E. Yamazaki, F. Inuzuka, Atsushi Takada, G. Cincotti, N. Wada and K. Kitayama :
Demonstration of wavelength convertible OBS with multi optical code labeled control packet using single en/decoder,
in Proc. European Conference of Optical Communication (ECOC) 2006, Vol.-, No.Th1.2.4, -, Sep. 2006.
57. E. Yamazaki, F. Inuzuka, K. Yonenaga, Atsushi Takada and M. Koga :
Nonlinear inter channel crosstalk compensation in carrier phase locked WDM,
in Proc. European Conference of Optical Communication (ECOC) 2006, Vol.-, No.Th3.2.3, -, Sep. 2006.
58. T. Yamamoto, T. Komukai, S. Kawanishi, K. Suzuki and Atsushi Takada :
Optical frequency comb generation using phase modulators and group velocity dispersion medium,
in Proc. Asia Pacific Microwave Photonics Conference 2006, Vol.-, No.-, 225-227, Apr. 2006.
59. E. Yamazaki, F. Inuzuka, Atsushi Takada, K. Yonenaga and T. Morioka :
Inter channel crosstalk cancellation by encoding with adjacent channels in coherent WDM,
in Proc. Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference (OFC/NFOEC) 2006, Vol.-, No.JThB6, -, Mar. 2006.
60. Atsushi Takada, W. Imajuku, T. Morioka and K. Hagimoto :
Applications of optical parametric process,
in Proc. Optical Amplifiers and their Applications (OA&A) 2005, No.WC1, Budapest, Aug. 2005.
61. E. Yamazaki, Atsushi Takada and T. Morioka :
Noise figure measurement of parametric wavelength conversion in a quasi phase matched LiNbO3 waveguide,
in Proc. Lasers and Electro Optics Conference on and Quantum Electronics and Laser Science (CLEO/QELS) 2005, No.CWE5, May 2005.
62. J. Yamawaku, E. Yamazaki, Atsushi Takada, T. Morioka and K. Suzuki :
Virtual grouped wavelength path switching based on QPM LN waveband converter and supercontinuum wavelength bank source,
in Proc. Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference (OFC/NFOEC) 2005, Vol.-, No.OFE2, -, Mar. 2005.
63. Atsushi Takada :
Optical parametric process for optical signal processing,
in Proc. Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference (OFC/NFOEC) 2005, No.OTuG5, Anaheim, Mar. 2005.
64. J. Yamawaku, E. Yamazaki, Atsushi Takada and T. Morioka :
Field demonstration of virtual grouped wavelength path switching with transparent waveband conversion in QPM LN and PLC matrix switch in the test bed of JGN II,
in Proc. European Conference of Optical Communication (ECOC) 2004, Vol.-, No.Postdeadline paper Th4.5.3, -, Sep. 2004.
65. E. Yamazaki, Atsushi Takada, J. Yamawaku, T. Morioka, H. Miyazawa, O. Tadanaga and M. Asobe :
Wavelength conversion and multi carrier generation using quasi phase matched LiNbO3 waveguides operating on optical frequency grid,
in Proc. Conference on Lasers and Electro Optics (CLEO) 2004, Vol.2, No.CFN2, 944-945, May 2004.
66. E. Yamazaki, Atsushi Takada, J. Yamawaku, T. Morioka, O. Tadanaga and M. Asobe :
Simultaneous and arbitrary wavelength conversion of WDM signals using multiple wavelength quasi phase matched LiNbO3 waveguide,
in Proc. Optical Fiber Communication conference (OFC) 2004, Vol.2, 576-578, Feb. 2004.
67. J. Yamawaku, H. Takara, T. Ohara, K. Sato, Atsushi Takada, T. Morioka, O. Tadanaga, H. Miyazawa and M. Asobe :
Inter band wavelength conversion of 25 GHz spaced 1.03 Tbit/s (103 x 10 Gbit/s) DWDM signals with small guard band and low crosstalk in PPLN waveguide,
in Proc. Conference on Lasers and Electro Optics (CLEO) 2003, Vol.-, No.CThPDB 2, 2119-2120, Jun. 2003.
68. J. Yamawaku, Atsushi Takada, E. Yamazaki, O. Tadanaga, H. Miyazawa and M. Asobe :
Selective wavelength conversion using PPLN waveguide with two pump configuration,
in Proc. Conference on Lasers and Electro Optics (CLEO) 2003, Vol.-, No.CWB5, 1135-1136, Jun. 2003.
69. Atsushi Takada, E. Yamazaki and J. Park :
Wavelength converter operating on strict frequency grid using a single side band optical modulator in a circulating loop,
in Proc. Optical Fiber Communication conference (OFC) 2003, Vol.2, No.FP 5, 769-770, Mar. 2003.
70. J. H. Park and Atsushi Takada :
Node configuration QoS and network performance evaluation of an ultra high speed optical packet switching ring network,
in Proc. Optical Network Design and Modeling (ONDM) 2003, No.-, -, Feb. 2003.
71. W. Imajuku and Atsushi Takada :
Coherent optical amplifier using degenerative parametric process in silica fiber,
International Symposium on Signals, Systems, and Electronics, 133, 133, Jul. 2001.
72. J. Yamawaku, W. Imajuku, Atsushi Takada, S. Okamoto and T. Morioka :
Investigation of virtual grouped wavelength path routing networks,
in Proc. Optoelectronics and Communications Conference and the International Conference on Integrated Optics and Optical Fiber Communication (OECC/IOOC) 2001, Vol.-, No.-, 194-196, Jul. 2001.
73. Atsushi Takada, J. H. Park, W. Imajuku and Y. Yamabayashi :
Ultrafast packet ring network employing optical label switching,
in Proc. European Conference on Optical Communication (ECOC) 2000, Vol.2, No.4.1.2, 19-20, Sep. 2000.
74. Atsushi Takada and W. Imajuku :
Coherent optical amplifier,
in Proc. European Conference on Optical Communication (ECOC) 2000, Vol.3, No.8.2.1, 87-90, Sep. 2000.
75. J. H. Park, Atsushi Takada, W. Imajuku and Y. Yamabayashi :
Ultrafast ring network with add drop type optical label switching,
in Proc. Optoelectronics and Communications Conference (OECC) 2000, Vol.-, No.12A2 3, 90-91, Jul. 2000.
76. W. Imajuku, Atsushi Takada and Y. Yamabayashi :
In line coherent optical amplifier with noise figure under the 3 dB quantum limit,
in Proc. European Conference on Optical Communication (ECOC) 1999, Vol.-, No.Postdeadline paper D11, 2-3, Sep. 1999.
77. W. Imajuku and Atsushi Takada :
Theoretical noise figure of phase sensitive amplifier using Mach Zehnder interferometer with lossy Kerr media,
in Proc. Optical Amplifiers and their Appl. (OA&A) 1999, Vol.-, No.-, 143-146, Jun. 1999.
78. W. Imajuku and Atsushi Takada :
Pulse form reshaping of chirped pulse using optical phase sensitive amplifier,
in Proc. Optical Fiber Communication conference (OFC) 1999, Vol.1, No.TuJ4, 131-133, Feb. 1999.
79. E. Hashimoto, Atsushi Takada and Y Katagiri :
Clock source limited low jitter subterahertz signal generation from mode locked semiconductor laser controlled by phase locked loop (PLL) with photonic downconversion,
in Proc. Microwave Photonics 1998, Vol.-, No.TuC5, 169-172, Princeton, NJ , USA, Oct. 1998.
80. K. Nonaka, H. Takara, K. Uchiyama and Atsushi Takada :
Bit rate flexible all optical RZ/NRZ transformation with saturable absorption laser diode,
in Proc. Conference on Lasers and Electro Optics (CLEO) 1998, Vol.-, No.CMA6, 5-6, May 1998.
81. Atsushi Takada and W. Imajuku :
Optical phase sensitive amplifier with pump laser phase locked to input signal light,
in Proc. European Conference on Optical Communication (ECOC) 1997, Vol.2, No.TU2B 5, 98-101, Sep. 1997.
82. W. Imajuku and Atsushi Takada :
In line phase sensitive amplifier with optical PLL controlled internal pump light source,
in Proc. Optical Amplifiers and their Applications (OA&A) 1997, Vol.-, No.D 5, -, Jul. 1997.
83. Atsushi Takada, S. Nishi, H. Abe, Y. Uenishi and S. Nagaoka :
Micromechanical mode locked semiconductor lasers for optical pulse synthesizers,
in Proc. IEEE Lasers and Electro Optics Society (LEOS) Annual Meeting 1996, Vol.-, No.Postdeadline paper DP1.6, -, Nov. 1996.
84. Y. Katagiri and Atsushi Takada :
Timing synchronization of optical pulse train from passively mode locked semiconductor lasers by phase locked loop,
in Proc. IEEE Lasers and Electro Optics Society (LEOS) Annual Meeting 1996, Vol.2, No.ThI4, 339-340, Nov. 1996.
85. Atsushi Takada and W. Imajuku :
The improvement of signal to noise ratio with nonlinear amplification in inline phase sensitive amplifier system,
in Proc. Optical Amplifiers and their Applications (OA&A) 1996, Vol.-, No.SaC5, 258-261, Jul. 1996.
86. W. Imajuku and Atsushi Takada :
Theoretical analysis of lightwave systems using phase sensitive amplifiers,
in Proc. First Optoelectronics and Communications Conference (OECC) 1996, Vol.-, No.-, 246-247, Jul. 1996.
87. Atsushi Takada and W. Imajuku :
Amplitude noise suppression by using high gain phase sensitive amplifier as limiting amplifier,
in Proc. Optical Fiber Communication conference (OFC) 1996, Vol.-, No.WA5, 94-95, Feb. 1996.
88. Atsushi Takada, K. Sato, M. Saruwatari and M. Yamamoto :
Pulse width tunable subpicosecond pulse generation from an actively mode locked monolithic MQW laser / MQW electroabsorption modulator,
in Proc. Conference on Lasers and Electro Optics (CLEO) 1994, Vol.-, No.CWN5, 256, May 1994.
89. Atsushi Takada, K. Aida and M. Jinno :
Demultiplexing of a 40 Gbit/s optical signal to 2.5 Gbit/s using a nonlinear fiber loop mirror driven by amplified gain switched laser diode pulses,
in Proc. Optical Fiber Communication conference (OFC) 1991, Vol.-, No.TuN3, 50, Feb. 1991.
90. K. Aida, H. Masuda and Atsushi Takada :
Long span IM/DD transmission system experiment using high efficiency EDF amplifiers,
in Proc. Optical Amplifiers and their Applications (OA&A) 1990, Vol.-, No.TuC5, 164-167, Aug. 1990.
91. K. Hagimoto, Atsushi Takada, Y. Miyagawa, K. Kawano and Tohmori Y. :
5 Gbit/s 200 km Non repeated transmission using LD pumped Er3+ doped fiber amplifiers,
in Proc. European Conference on Optical Communication (ECOC) 1989, Vol.-, No.-, 78-81, Aug. 1989.
92. Atsushi Takada, K. Hagimoto, K. Iwatsuki, K. Aida, K. Nakagawa and M. Shimizu :
1.8 Gbit/s transmission over 210 km using an Erbium doped fiber laser amplifier with 20 dB repeater gain in a direct detection system,
in Proc. 7th International Conference on Integrated Optics and Optical Fiber Communication (IOOC) 1989, Vol.-, No.21B3 3, 30-31, Jul. 1989.
93. Atsushi Takada, K. Iwatsuki and M. Saruwatari :
All optical picosecond gate using traveling wave semiconductor laser amplifier,
in Proc. Conference on Lasers and Electro Optics (CLEO) 1989, Vol.-, No.WI4, 228-229, May 1989.
94. K. Hagimoto, K. Iwatsuki, Atsushi Takada, K. Nakazawa, M. Saruwatari, K. Aida, K. Nakagawa and M. Horiguchi :
A 212 km Non repeated transmission experiment at 1.8 Gbit/s using LD pumped Er doped fiber amplifiers in an IM/DD system,
in Proc. Optical Fiber Communication conference (OFC) 1989, Vol.-, No.Postdeadline paper D15, -, Feb. 1989.
95. K. Iwatsuki, Atsushi Takada, K. Hagimoto, M. Saruwatari, Y. Kimura and M. Shimizu :
Er3+ doped fiber ring laser with less than 10 kHz linewidth,
in Proc. Optical Fiber Communication conference (OFC) 1989, Vol.-, No.Postdeadline paper D5, -, Feb. 1989.
96. M. Saruwatari, K. Nakagawa, Kawanishi S. and Atsushi Takada :
Advanced optical communications Technologies utilizing ultrafast optical pulses,
in Proc. International Conference on Ultrafast Phenomena 1988, Vol.-, 208, Jul. 1988.
97. K. Iwatsuki, Atsushi Takada and M. Saruwatari :
Observation of optical soliton propagation using 3 GHz gain switched 1.3 ?m laser diodes,
in Proc. International Quantum Electronics Conference (IQEC) 1988, Vol.-, No.D 14, 34-35, Jul. 1988.
98. Y. Yamabayashi, Atsushi Takada and M. Saruwatari :
Picosecond optical sampling with LiNbO3 waveguide and compressed laser diode pulses,
in Proc. Integrated and Guided Wave Optics Topical Meeting 1988, Vol.-, No.-, 369-372, Mar. 1988.
99. M. Saruwatari and Atsushi Takada :
An ultrafast optical multi/demultiplexer utilizing the optical Kerr effect in polarization maintaining single mode fibers,
in Proc. Conference on Lasers and Electro Optics (CLEO) 1987, Vol.-, No.-, 286-287, May 1987.
100. T. Sugie, Atsushi Takada and M. Saruwatari :
Generation of 6 ps optical pulses with 4.4 GHz repetition rate from gain switched distributed feedback laser diodes by employing a compression technique,
in Proc. Conference on Lasers and Electro Optics (CLEO) 1986, Vol.-, No.ThO4, 318-319, May 1986.

Proceeding of Domestic Conference:

1. , Yasuhiro Okamura, Atsushi Takada and 佐藤 隆宣 :
水中移動体光無線通信のための送受信ビーム角度制御による レーザービーム追尾技術の検討,
Vol.0, No.0, 0, Sep. 2023.
2. Yasuhiro Okamura and Atsushi Takada :
四光波混合を用いた伝送路分布位相感応型光増幅中継技術,
レーザー学会学術講演会, Vol.0, No.0, 0, Jan. 2023.
3. Yasuhiro Okamura and Atsushi Takada :
波長帯域シフトフリー位相共役光伝送における 伝送路パワープロファイルの影響,
レーザー学会ン弁治大会, Vol.0, No.0, 0, Jan. 2023.
4. yuma takeda, KAZUYA Matsuda, Yasuhiro Okamura, Yu Nakadoi, Yuya Haoka and Atsushi Takada :
ナロービームによる水中移動体光無線情報伝送における伝送速度の伝送距離依存性の理論検討,
2022年電子情報通信学会ソサイエティ大会, B-10-15, Sep. 2022.
5. Yasuhiro Okamura, akira tanaka and Atsushi Takada :
Optical Parametric Signal Processing for Optical Fiber Communication,
IEICE Technical Report, Vol.IEICE-121, No.350, 51-55, Jan. 2022.
6. Atsushi Ohmori, Yasuhiro Okamura and Atsushi Takada :
Study on Quantization Conditions in Digitization of Optical Phase-Locked Loop Circuit for Phase-Sensitive Optical Amplification,
令和 3 年度 電気・電子・情報関係学会四国支部連合大会, 12-26, Sep. 2021.
7. takahiro kanamori, Yasuhiro Okamura, Yu Nakadoi, Yuya Haoka, Kaoru Nakayama and Atsushi Takada :
A Study on center-position estimation of received beam for optical wireless communication system,
令和 3 年度 電気・電子・情報関係学会四国支部連合大会, 12-25, Sep. 2021.
8. kenta takara, Yasuhiro Okamura and Atsushi Takada :
Study on quality deterioration of quadrature phase component in multi-relay transmission system using degenerate phase sensitive optical amplification repeater,
令和 3 年度 電気・電子・情報関係学会四国支部連合大会, 12-22, Sep. 2021.
9. Akira Tanaka, Yasuhiro Okamura and Atsushi Takada :
Amplitude noise suppression phase-sensitive optical amplified multi-relay transmission system using optical Kerr effect,
Proceedings of IEICE Society Conference, B-10-20, Sep. 2021.
10. akira tanaka, Yasuhiro Okamura and Atsushi Takada :
Amplitude noise suppression by using non-degenerate phase sensitive amplification and optical Kerr effect,
電子情報通信学会総合大会, B-10-27, Mar. 2021.
11. Yasuhiro Okamura and Atsushi Takada :
Multi-span transmission of WDM signals repeated by waveband-shift free optical-phase conjugator,
レーザー学会学術講演会第41回年次大会, G04-19p-VII-04, Jan. 2021.
12. taichi kito, Yasuhiro Okamura and Atsushi Takada :
Basic Study of Optical Gate Pulse Width in Demultiplexing of Optical Time Division Multiplexing Signals,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2020.
13. (名) ikegawa, Yasuhiro Okamura and Atsushi Takada :
A Study on Suppression of Residual Amplitude Modulation Component of Optical Phase-Locked Loop Circuit for Optical Quadrature Amplitude Modulation Signal,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2020.
14. kenya ishikawa, Yasuhiro Okamura and Atsushi Takada :
A Study on Eye Pattern and Wavelength Conversion Bandwidth of Wavelength Converter Using Cascaded Second-Order Nonlinear Effect in Periodically Polarized Lithium Niobate Waveguide,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2020.
15. michio yamamoto, Yasuhiro Okamura and Atsushi Takada :
A study on Optical Time Division Multiplexed Transmission System Relayed by Phase-Sensitive Optical Amplifiers,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2020.
16. tomoya miyake, Yasuhiro Okamura and Atsushi Takada :
A Study on Noise Measurement Method for Optical Phase-Locked Loop Generated Pump light for Phase-sensitive Optical Amplification,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2020.
17. shinnosuke araki, Yasuhiro Okamura and Atsushi Takada :
Pump light quality using Optical Phase-Locked Loop in Phase Sensitive Optical Amplifier Repeaters,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2020.
18. 風間 拓志, 梅木 毅伺, Yasuhiro Okamura, 圓佛 晃次, 忠永 修, Atsushi Takada and 笠原 亮一 :
位相同期局発光源を用いた位相感応増幅器の低雑音性の実証,
電子情報通信学会総合大会講演論文集, B-10-12, Mar. 2020.
19. Yasuhiro Okamura and Atsushi Takada :
差周波光発生を用いた波長無変換型位相共役光発生器における分散性素子間屈折率偏差の影響,
電子情報通信学会総合大会講演論文集, B-10-13, Mar. 2020.
20. Akira Tanaka, Yasuhiro Okamura and Atsushi Takada :
位相感応型光増幅器と光カー効果を用いた振幅雑音抑圧法の検討,
電子情報通信学会総合大会講演論文集, B-10-11, Mar. 2020.
21. Yasuhiro Okamura and Atsushi Takada :
Influence of splitting ratio deviation on difference-frequency generation based optical phase conjugation circuit,
レーザー学会学術講演会第40回年次大会, G01-21p-X-04, Jan. 2020.
22. Tatsuya Nishizaki, Yasuhiro Okamura and Atsushi Takada :
Polarization Independent Carrier Extraction in Pump Phase-Locked Loop for Phase-Sensitive Amplifier Repeaters Using Polarization Orthogonal Dual Pilot Tone,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2019.
23. Atsushi Nii, Yasuhiro Okamura and Atsushi Takada :
Proposal of noise characteristics evaluation index of phase sensitive optical amplifier and its dependency on a deterioration factor,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2019.
24. Hideaki Hayashi, Yasuhiro Okamura and Atsushi Takada :
Study on numerical-simulation method in analysis of optical phase lock loop circuit,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2019.
25. miyamoto ryo, Yasuhiro Okamura and Atsushi Takada :
Mitigation of Multi-User Interference on Fourier-Encoded Optical Code Division Multiplexing Systems with Encoded Symbol Copy Insertion,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2019.
26. Atsushi Nii, Yasuhiro Okamura and Atsushi Takada :
Proposal of noise characteristics evaluation index of phase sensitive optical amplifier and its dependency on a deterioration factor,
Proceedings of IEICE Society Conference, Sep. 2019.
27. Yasuhiro Okamura and Atsushi Takada :
Wavelength-Conversion Free Optical Phase-Conjugator with Difference-Frequency Generation,
Proceedings of IEICE Society Conference, Sep. 2019.
28. Yasuhiro Okamura and Atsushi Takada :
Simultaneous Carrier Extraction from WDM-Phase-Conjugated Twin Waves on Pump Phase-Locking for Phase-Sensitive Amplifier Repeaters,
レーザー学会学術講演会第39回年次大会, G113a02, Jan. 2019.
29. Yusuke Seto, Yasuhiro Okamura and Atsushi Takada :
Waveform Degradation on Demodulation of Interleaved 16QAM Signals with Amplified Reference Light with Single Photodetector,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 12-30, Sep. 2018.
30. Takashi Hioka, Yasuhiro Okamura and Atsushi Takada :
Compensation of Optical Nonlinear Degradation Using Phase Conjugated Twin Waves on Fourier-Encoded Synchronous Optical Code Division Multiplexed Systems,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 12-29, Sep. 2018.
31. Ryo Miyamoto, Yasuhiro Okamura and Atsushi Takada :
Improvement of Symbol Asynchronization Penalty in Fourier-Encoded Synchronous Optical Code Division Multiplexing Systems with Oversampling Detection,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 12-28, Sep. 2018.
32. Wataru Nakanishi, Kouhei Aga, Ikuya Nagatomi, Tatsuya Nishizaki, Yasuhiro Okamura and Atsushi Takada :
Feedback Control of Carrier Component Extraction from Polarization-Division Multiplexed Signal for Optical Phase-Locked Loop in Phase-Sensitive Amplifier Repeaters,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 12-27, Sep. 2018.
33. Ryo Morimoto, Yasuhiro Okamura and Atsushi Takada :
Study on Performance Index of Phase Sensitive Optical Parametric Amplifier for Polarization Multiplexed Signal,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 12-26, Sep. 2018.
34. Yu Inoue, Yasuhiro Okamura and Atsushi Takada :
A study on Transmission Quality of Carrier Phase Locked Wavelength Division Multiplexed Optical Fiber Transmission System with Non-Degenerate Phase-Sensitive Optical Amplification,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 12-18, Sep. 2018.
35. Takeshi Umeki, Takushi Kazama, Takayuki Kobayashi, Shigehiro Takasaka, Yasuhiro Okamura, Koji Enbutsu, Ryuichi Sugizaki, Atsushi Takada, Ryoichi Kasahara and Yutaka Miyamoto :
PDM-16QAM信号の高利得・WDM一括 位相感応光中継増幅,
電子情報通信学会総合大会講演論文集, B-10-24, Mar. 2018.
36. Ikuya Nagatomi, Kohei Aga, Takumi Okabe, Wataru Nakanishi, Yasuhiro Okamura and Atsushi Takada :
Pump Phase-Locked to PDM Phase-Conjugated Twin Waves by using Phase Modulation in Optical Parametric Phase-Sensitive Amplifier Repeaters,
IEICE Technical Report, Feb. 2018.
37. Kohei Aga, Takumi Okabe, Ikuya Nagatomi, Wataru Nakanishi, Yasuhiro Okamura, Ryoichi Kasahara, Takeshi Umeki and Atsushi Takada :
Optical Phase-Locked Loop in Optical Parametric Phase-Sensitive Amplifier Repeaters for Dual Polarization Phase-Conjugated Twin Waves,
レーザー学会学術講演会第38回年次大会, G225pIX09, Jan. 2018.
38. Yasuhiro Okamura and Atsushi Takada :
Optical phase-locked loop with carrier extraction by using quadrature squeezing and second-harmonic generation for polarization-multiplexed M-QAM phase-conjugated twin waves,
レーザー学会学術講演会第38回年次大会, G225pIX10, Jan. 2018.
39. Satoki Nakajima, Yasuhiro Okamura and Atsushi Takada :
Frequency Estimation Using Polarization Multiplexed Optical Phase Conjugate Signal on Fourier-Encoded Synchronous Optical Code Division Multiplexed Systems,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 134, Sep. 2017.
40. Takumi Okabe, Yasuhiro Okamura and Atsushi Takada :
Study on Optimum Design of Loop Filter in Pump Phase Synchronization using Optical Phase-lock Loop in Optical Parametric Phase-sensitive Amplifier,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 133, Sep. 2017.
41. Aki Yamamoto, Yasuhiro Okamura and Atsushi Takada :
Study on the Inter Symbol Interference in Optical Fiber Transmission System Employing Nondegenerate Optical Parametric Phase-Sensitive Amplifier Repeaters for Quadrature Amplitude Modulated Optical Signal,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 132, Sep. 2017.
42. Syunsuke Noami, Yasuhiro Okamura and Atsushi Takada :
Study on phase conjugate light generation circuit without wavelength conversion using difference frequency generation by second order optical nonlinear medium,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 131, Sep. 2017.
43. Hayaki Uno, Yasuhiro Okamura and Atsushi Takada :
Proposal of Signal Generation Method for Multi-level Modulated Signals Interleaved with Amplified Reference Light,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 126, Sep. 2017.
44. Kenta Kondo, Yasuhiro Okamura and Atsushi Takada :
The study of extracted carrier power on dispersion of transmission optical fiber in phase-sensitive optical amplifiers using WDM signals,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, 125, Sep. 2017.
45. Yasuhiro Okamura, Masashi Abe, Kotaro Kondo, Takumi Okabe, Takushi Kazama, Akihide Sano, Takeshi Umeki, Ryoichi Kasahara and Atsushi Takada :
Parametric Amplification of 80-km transmitted QPSK Phase-Conjugated Twin Waves by Non-Degenerate Phase-Sensitive Optical Amplifier Repeater with Pump Phase Locking Circuit,
電子情報通信学会総合大会講演論文集, Mar. 2017.
46. Yuya Omichi, Masashi Abe, Kotaro Kondo, Yasuhiro Okamura, Takushi Kazama, Takeshi Umeki, Masafumi Koga and Atsushi Takada :
Amplification experiment using optical phase-lock loop with sum-frequency generation of signal and phase conjugate lights in non-degenerate optical parametric phase-sensitive amplifiers,
レーザー学会学術講演会第37回年次大会, Jan. 2017.
47. Takeshi Kimura, Yasuhiro Okamura and Atsushi Takada :
A study on the acceptable phase error of phase locked pump light for nondegenerate optical parametric phase-sensitive amplifier-repeater transmission systems,
レーザー学会学術講演会第37回年次大会, Jan. 2017.
48. Yuki Fujita, Kotaro Kondo, Yasuhiro Okamura and Atsushi Takada :
A study on bias voltage control of a single sideband optical modulator for optical voltage-controlled oscillator,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2016.
49. Shinsuke Sharyo, Yasuhiro Okamura and Atsushi Takada :
Influence of Polarization Fluctuation in Transmission Fiber on Sum-Frequency Generation Based Carrier Extraction of Polarization Multiplexed Phase-Conjugated Twin Waves,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2016.
50. Yuya Omichi, Kotaro Kondo, Yasuhiro Okamura, Masafumi Koga and Atsushi Takada :
Pump phase synchronization experiment using optical phase-lock loop with sum-frequency generation of signal and phase conjugate lights in non-degenerate optical parametric phase-sensitive amplifiers,
Proceedings of the Society Conference of IEICE, Sep. 2016.
51. Kotaro Kondo, Yuya Omichi, Yasuhiro Okamura and Atsushi Takada :
Pump phase synchronization experiment using optical phase-lock loop with sum-frequency generation of signal and phase conjugate lights in non-degenerate optical parametric phase-sensitive amplifiers,
電子情報通信学会総合大会講演論文集, Mar. 2016.
52. Shingo Seki, Yasuhiro Okamura and Atsushi Takada :
Phase-Conjugated Twin Waves Transmission on Multi-Span Systems using Nondegenerate Optical Parametric Phase-Sensitive Amplifier Repeaters with Optical Phase-Locked Loop,
電子情報通信学会総合大会講演論文集, Mar. 2016.
53. Yasuhiro Okamura, Naotaka Ishimura, Masanori Hanawa and Atsushi Takada :
Nonlinear Crosstalk Degradation on Symbol-Synchronous WDM Transmission of M-ary Modulated Signals Interleaved with Reference Light,
電子情報通信学会総合大会講演論文集, Mar. 2016.
54. Naotaka Ishimura, Yasuhiro Okamura, Masanori Hanawa and Atsushi Takada :
Dispersion Tolerance Improvement on Transmission of 16-QAM signals Interleaved with Reference Light by Adjustment of Electric Field Amplitude,
IEICE Technical Report, Vol.OCS2015-97, 51-56, Jan. 2016.
55. Yasuhiro Okamura, Naotaka Ishimura, Masanori Hanawa and Atsushi Takada :
WDM-PON based on multi-level modulated signals interleaved with reference light,
レーザー学会学術講演会第36回年次大会, Jan. 2016.
56. Fuminori Kiryu, Yasuhiro Okamura and Atsushi Takada :
非縮退パラメトリック位相感応型光増幅のための Decision-Driven 励起光位相同期ループ回路における信号光・アイドラ光差周波抽出回路の検討,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2015.
57. Shinji Shimokawa, Atsushi Takada and Yasuhiro Okamura :
信号光と光位相共役光の共伝送信号位相感応型光増幅 中継伝送系における信号品質劣化に関する研究,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2015.
58. Takaaki Miyake, Atsushi Takada and Yasuhiro Okamura :
光周波数シフタを用いたループ型短光パルス発生系におけるパルス幅/スペクトルフラットネスの光源線幅依存性に関する研究,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2015.
59. Takaaki Nishioka, Yasuhiro Okamura and Atsushi Takada :
光パラメトリック位相感応型増幅における出力信号光品質の励起光雑音依存性に関する検討,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2015.
60. Haruka Funahashi, Eiji Hamada, Takaaki Nishioka, Yasuhiro Okamura and Atsushi Takada :
高非線形光ファイバを用いた光パラメトリック増幅器における誘導ブリルアン散乱による利得抑圧に関する検討,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2015.
61. Naotaka Ishimura, Yasuhiro Okamura, Masanori Hanawa and Atsushi Takada :
インターリーブ伝送における参照光振幅拡大による分散劣化の低減,
Proceedings of IEICE Society Conference, Sep. 2015.
62. Yasuhiro Okamura, Masafumi Koga and Atsushi Takada :
励起光位相同期回路を用いた光ファイバパラメトリック位相感応利得の安定化実験,
Proceedings of IEICE Society Conference, Sep. 2015.
63. Hamada Eiji, Yasuhiro Okamura and Atsushi Takada :
Characteristics of simultaneous amplification in a non-degenerate optical parametric phase-sensitive amplifier,
電子情報通信学会総合大会講演論文集, 399, Mar. 2015.
64. Ozaki Shouta, Yasuhiro Okamura, Masanori Hanawa and Atsushi Takada :
PAPR Characteristics of Fourier Encoded Synchronous Optical Code Division Multiplexed Signals,
電子情報通信学会総合大会講演論文集, 368, Mar. 2015.
65. Yasuhiro Okamura, Masanori Hanawa and Atsushi Takada :
Influence of Laser Linewidth on Multi-level Modulated Signals Interleaved with Reference Light,
電子情報通信学会総合大会講演論文集, 376, Mar. 2015.
66. Yasuhiro Okamura, Masanori Hanawa and Atsushi Takada :
Influence of chromatic dispersion on optical fiber transmission of QPSK signals interleaved with reference light,
レーザー学会学術講演会年次大会, Jan. 2015.
67. Atsushi Takada, Yasuhiro Okamura and Masafumi Koga :
コヒーレント信号の位相感応型光パラメトリック増幅,
東北大学電気通信研究所共同プロジェクト研究会「マルチキャリア光波による先進通信・計測システムに関する研究」, Dec. 2014.
68. KORYO HIGASHIYAMA, Yasuhiro Okamura, MASAFUMI KOGA and Atsushi Takada :
Detection of control signal of pump light for frequency-nondegenerate optical phase sensitive amplifiers,
Proceedings of IEICE Society Conference, Sep. 2014.
69. EIJI HAMADA, Yasuhiro Okamura and Atsushi Takada :
Gain bandwidth in a non-degenerate optical parametric phase-sensitive amplifier,
Proceedings of IEICE Society Conference, Sep. 2014.
70. YUSUKE MITSUI, Yasuhiro Okamura, Atsushi Takada and MASANORI HANAWA :
Blind Compensation of IQ Imbalance with Iterative CMA on M-PSK Signals Interleaved with Reference Light,
Proceedings of IEICE Society Conference, Sep. 2014.
71. SHOTA OZAKI, Yasuhiro Okamura, MASANORI HANAWA and Atsushi Takada :
Influence of the Error Threshold on Iterative-Modified Constant Modulus Algorithm,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2014.
72. YUSUKE MITSUI, NAOTAKA ISHIMURA, Yasuhiro Okamura and Atsushi Takada :
Signal-Quality Monitor Creation for Multi-level Modulated Signals Interleaved with Reference Light,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2014.
73. NAOTAKA ISHIMURA, YUSUKE MITSUI, Yasuhiro Okamura and Atsushi Takada :
24.7-km Optical-Fiber Transmission of 5-Gbaud BPSK/QPSK Signals Interleaved with Reference Light,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Sep. 2014.
74. Atsushi Takada :
光パラメトリック・位相感応光増幅技術,
電子情報通信学会光通信システム研究会OCS Summer School 2014, Vol.1, No.1, 32-38, Aug. 2014.
75. Atsushi Takada, Yasuhiro Okamura and 古賀 正文 :
位相感応型光増幅中継技術,
電子情報通信学会マイクロ波フォトニクス研究会技術報告, Vol.114, No.14, 33-38, Apr. 2014.
76. Yasuhiro Okamura, Atsushi Takada and Masanori Hanawa :
参照光時間インターリーブ多値光変調方式におけるI/Qインバランスのディジタル補償,
電子情報通信学会総合大会講演論文集, Mar. 2014.
77. Atsushi Takada and 古賀 正文 :
Phase-sensitive amplifiers and their application in optical fiber communication,
レーザー学会創立40周年記念学術講演会第34回年次大会, Vol.S5, No.22 a II, 1, Jan. 2014.
78. Yasuhiro Okamura, Atsushi Takada and Masanori Hanawa :
参照光時間インターリーブ方式における光遅延干渉計位相誤差の影響,
レーザー学会学術講演会年次大会, Jan. 2014.
79. Hiroyuki Matsuda, Masahiro Kasuga, Yasuhiro Okamura and Atsushi Takada :
光位相変調と自己位相変調による広帯域マルチキャリア光発生回路の検討,
レーサー学会学術講演会年次大会, Jan. 2014.
80. Yuya Sakai, Yasuhiro Okamura, Masafumi Koga and Atsushi Takada :
搬送波位相同期 WDM 伝送系における位相感応増幅中継による波長チャネル間クロストーク抑圧法の検討,
Proceedings of the Society Conference of IEICE, Vol.B, No.10, 51, Sep. 2013.
81. 石澤 淳, 西川 正, 水鳥 明, 高良 秀彦, Atsushi Takada, 寒川 哲臣 and 古賀 正文 :
Phase noise characteristics of supercontinuum light generated by a phase-modulated laser,
2013年 応用物理学会秋季学術講演会, Vol.74, 19A-A3-4, Sep. 2013.
82. Sakai Yuya, Yasuhiro Okamura, Masafumi Koga and Atsushi Takada :
搬送波位相同期波長分割多重伝送系における位相感応増幅中継による波長チャネル間クロストーク抑圧法の検討,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Vol.2013, Sep. 2013.
83. Atsushi Takada :
位相感応光増幅技術,
電子情報通信学会光通信システム研究会 信学技報, Vol.IEICE-OCS113, No.156, 81-86, Jul. 2013.
84. 堺 友哉, 菅本 真陸, 水鳥 明, Atsushi Takada and 古賀 正文 :
Experiment on 12.5Gbit/sBPSK signal Phase-sensitive optical amplification pumped by Costas loop phase-controlled light,
電子情報通信学会総合大会, Vol.C, No.B10, Mar. 2013.
85. Atsushi Takada and 古賀 正文 :
Repeated optical fiber transmission techniques using phase-sensitive amplifiers,
学術講演会第33回年次大会, Vol.1, No.1, 29pIV, Jan. 2013.
86. 岡崎 直也, 菅本 真陸, 水鳥 明, Atsushi Takada and 古賀 正文 :
Non-degenerate Parametric amplification using by Optically Phase-Lock Looped Pump light -Phase Sensitive Optical Amplifier-,
2012年ソサイエティ大会, Vol.B, No.10, 86, Sep. 2012.
87. 岡崎 直也, 橋本 佳祐 and Atsushi Takada :
Phase Sensitive Optical Amplifier using Non-degenerate Parametric amplification,
2012年電気関係学会四国支部連合大会, Vol.12, No.25, 195, Sep. 2012.
88. 橋本 佳祐, 三好 俊 and Atsushi Takada :
多値光PSK変調信号の位相感応型光増幅中継伝送方式の研究,
2012年総合大会, Vol.CS, No.B-10, 39, Mar. 2012.
89. 中谷 栄希, 三好 俊 and Atsushi Takada :
位相感応型光増幅中継伝送系における光位相同期誤差累積に関する検討,
電子情報通信学会2012年総合大会, Vol.CS, No.B-10, 38, Mar. 2012.
90. 西川 正, 石澤 淳, 水鳥 明, 高良 秀彦, 中野 秀俊, 寒川 哲臣, Atsushi Takada and 古賀 正文 :
Phase characteristics of supercontinuum from an externally phase-modulated laser diode,
2011年 (平成23年)秋季第72回応用物理学会学術講演会, Vol.30p, No.ZH, 4, Sep. 2011.
91. 石澤 淳, 西川 正, 水鳥 明, 高良 秀彦, 中野 秀俊, 寒川 哲臣, Atsushi Takada and 古賀 正文 :
Generation of high-power, high-repetition rate, sub-100-fs optical pulses from a CW laser diode,
2011年 (平成23年)秋季第72回応用物理学会学術講演会, Vol.30p, No.ZH, 5, Sep. 2011.
92. 中谷 栄希, 三好 俊平 and Atsushi Takada :
Theoretical analysis on the accumulation of optical phase-locked errors in repeated optical fiber transmission system using phase-sensitive amplifiers,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Vol.1, No.12-7, 169, Sep. 2011.
93. Atsushi Takada and Koga Masafumi :
Phase Sensitive Optical Amplification,
電子情報通信学会通信ソサイエティ大会, Vol.B, No.BCI-2-5, BCI-2-5, Sep. 2011.
94. Koga Msafumi and Atsushi Takada :
Optical Frequency Synchronous Photonic Network based on Carrier-Envelope Offset Lock Frequency Comb,
電子情報通信学会通信ソサイエティ大会, Vol.B, No.BCI-1-2, BCI-1-2, Sep. 2011.
95. 三好 俊平, 橋本 佳祐 and Atsushi Takada :
Simulation on regenerative repeater span length in an optical BPSK repeated transmission system using phase-sensitive amplifiers,
2011年電子情報通信学会総合大会, Vol.B, No.10, 102, Mar. 2011.
96. Atsushi Takada and 古賀 正文 :
Phase-sensitive amplifiers for coherent optical communication,
2011年電子情報通信学会総合大会, Vol.C, No.3, 26, Mar. 2011.
97. 石澤 淳, 西川 正, 水鳥 明, 高良 秀彦, 青笹 真一, 森 淳, 寒川 哲臣, 中野 秀俊, Atsushi Takada and 古賀 正文 :
Generation of an octave-wide spectrum for achieving a carrier-envelope-offset-locked frequency comb with 25-GHz mode spacing,
レーザー学会学術講演会 第31回年次大会講演論文集, Vol.G, No.09aVII, 3, Jan. 2011.
98. Miyoshi Shumpei and Atsushi Takada :
Theoretical analysis on suppression of waveform degradation in BPSK repeated optical fiber transmission system using phase-sensitive amplifiers,
Journal of Shikoku-Section Joint Convention of the Institutes of Electrical and Related Engineers, Vol.1, No.12, 125, Sep. 2010.
99. 石澤 淳, 西川 正, 水鳥 明, 高良 秀彦, 青笹 真一, 森 淳, 寒川 哲臣, 中野 秀俊, Atsushi Takada and 古賀 正文 :
Generation of an octave-wide spectrum with a short pulse laser at a 25 GHz repetition rate by employing a combination of phase modulation and intensity modulation,
2010年秋季第71回応用物理学会学術講演会, Vol.4, No.16a, 141, Sep. 2010.
100. Atsushi Takada :
Advances of information communication technology based on lasers,
2010年秋季第71回応用物理学会学術講演会, Vol.1, No.15a, 5, Sep. 2010.
101. 石澤 淳, 水鳥 明, 高良 秀彦, 西川 正, 青笹 真一, 森 淳, 中野 秀俊, Atsushi Takada and 古賀 正文 :
高繰り返しCEP 制御光コム実現に向けたオクターブ光発生,
2009年秋季応用物理関係連合大会, Vol.4, No.10a-B-4, 997, Sep. 2009.
102. 山本 秀人, 米永 一茂, 佐原 明夫, 犬塚 史一 and Atsushi Takada :
シンボルレートより小さなサブチャネル周波数間隔を有する光OFDM伝送実験,
電子情報通信学会2009年ソサイエティ大会, No.B-10-75, Sep. 2009.
103. 山本 秀人, 米永 一茂, 佐原 明夫, 犬塚 史一 and Atsushi Takada :
光OFDM信号における狭帯域化の実現と波長分散耐力の改善,
電子情報通信学会技術研究報告(OCS2009-32), Vol.109, No.178, 17-22, Aug. 2009.
104. 佐原 明夫, 築島 幸男, 高橋 哲夫, 大窪 洋平, 山田 一久, 松田 和浩 and Atsushi Takada :
ROADMリングシステムにおけるカラーレス機能・ディレクションレス機能の検討,
電子情報通信学会技術研究報告(OCS2009-18), Vol.109, No.103, 49-54, Jun. 2009.
105. 大窪 洋平, 佐原 明夫 and Atsushi Takada :
Colorless/Directionless 光クロスコネクト(OXC)の性能評価,
電子情報通信学会2009年総合大会, No.B-12-15, Mar. 2009.
106. 犬塚 史一, 山崎 悦史, 米永 一茂 and Atsushi Takada :
搬送波光位相同期WDMにおける送信端信号処理を用いたDQPSK信号の非線形クロストーク補償,
電子情報通信学会2009年総合大会, No.B-10-38, Mar. 2009.
107. 高良 秀彦, 大原 拓也, 山本 貴司, 山崎 悦史, 犬塚 史一 and Atsushi Takada :
マルチキャリア光発生技術および1000波長WDM伝送技術,
2008年電子情報通信学会ソサイエティ大会, No.BCI-1-2, -, Sep. 2008.
108. 吉松 俊英, 橋詰 泰彰, 山本 秀人, 久保田 寛和, 吉田 英二, 伊藤 敏洋, 神野 正彦, Atsushi Takada and 宮本 裕 :
40Gbit/s NRZ-DQPSK信号のDGD耐力改善と50GHz間隔ROADMノード通過特性,
2008年電子情報通信学会ソサイエティ大会, No.B-10-78, -, Sep. 2008.
109. 山本 秀人, 吉松 俊英, 高良 秀彦, 小向 哲郎, 橋詰 泰章, 久保田 寛和, 増田 浩次, 神野 正彦 and Atsushi Takada :
広帯域なチャネル抑圧比を有する波長選択フィルタによるチャネル内クロストークの抑圧,
2008年電子情報通信学会ソサイエティ大会, No.B-10-64, -, Sep. 2008.
110. 神田 淳, 中村 誠, 米永 一茂, 鈴木 和宣, 山本 貴司, Atsushi Takada and 岡田 顕 :
分散モニタを集積した光デュオバイナリ伝送用10Gb/s適応型EDC-IC,
2008年電子情報通信学会ソサイエティ大会, No.B-10-39, -, Sep. 2008.
111. 水鳥 明, 古閑 貴裕, 西里 洋一, 古賀 正文, 森 邦彦, 鈴木 和宣, 山本 貴司 and Atsushi Takada :
L-band半導体レーザのITU-T周波数グリッドへの光周波数安定化,
2008年電子情報通信学会ソサイエティ大会, No.B-10-23, -, Sep. 2008.
112. 大窪 洋平, 佐原 明夫, 高橋 哲夫 and Atsushi Takada :
BWPSRネットワークにおける予備リソース低減手法の検討,
2008年電子情報通信学会総合大会, No.B-12-27, -, Mar. 2008.
113. 米永 一茂, 佐野 明秀, 山崎 悦史, 犬塚 史一, 宮本 裕, Atsushi Takada and 山田 貴 :
光位相制御サブキャリア合成による4x25Gbit/s光デュオバイナリ信号を用いた100Gbit/s全光OFDM伝送,
2008年電子情報通信学会総合大会, No.B-10-107, -, Mar. 2008.
114. 小林 孝行, 佐野 明秀, 山田 英一, 宮本 裕, 高良 秀彦 and Atsushi Takada :
電気・光多重併用型光OFDM方式による110 Gb/s伝送実験,
2008年電子情報通信学会総合大会, No.B-10-108, -, Mar. 2008.
115. Y. Sun, T. Ono, Atsushi Takada and M. Tomizawa :
Demonstration of 40-Gb/s/ch OTN-frame-based Delay-difference Detection and Compensation for Optical Virtual Concatenation,
2008年電子情報通信学会総合大会, No.B-10-87, -, Mar. 2008.
116. 浅井 克彦, 市原 英也, Atsushi Takada and 佐藤 健一 :
高機能フォトニックノードネットワークにおけるパス制御技術の検討,
2008年電子情報通信学会総合大会, No.B-8-7, -, Mar. 2008.
117. 犬塚 史一, 山崎 悦史, 米永 一茂 and Atsushi Takada :
搬送波光位相同期WDMにおける電気的送信端補償技術を用いた非線形クロストーク補償,
2008年電子情報通信学会総合大会, No.B-10-106, -, Mar. 2008.
118. 犬塚 史一, 高良 秀彦, 米永 一茂, 山崎 悦史 and Atsushi Takada :
RZ-CSRZ-DPSK 方式における波長選択スイッチのフィルタ多段接続によるOSNR ペナルティ評価,
2007年電子情報通信学会ソサイエティ大会, No.B-10-47, -, Sep. 2007.
119. Atsushi Takada and 高橋 哲夫 :
ROADMを用いた光リングシステム,
電子情報通信学会技術報告, No.OED, -, Jul. 2007.
120. 山崎 悦史, 犬塚 史一, 米永 一茂 and Atsushi Takada :
搬送波位相同期による光ファイバ伝送WDMクロストーク補償,
2007年電子情報通信学会総合大会, No.BS-7-8, -, Mar. 2007.
121. 山崎 悦史, 犬塚 史一, Weichenberg Guy, Atsushi Takada, 盛岡 敏夫 and 古賀 正文 :
トランスヘ アレント一括波長変換による波長群信号光の輻輳回避/パス設定機能の実証,
2007年レーザ学会学術講演会年次大会, No.-, -, Jan. 2007.
122. 犬塚 史一, 山崎 悦史, Atsushi Takada, 米永 一茂 and 古賀 正文 :
搬送波位相同期WDM によるチャネル間非線形クロストーク補償法(2)-零分散波長帯伝送距離延伸への適用-,
2006年電子情報通信学会ソサイエティ大会, No.B-10-61, -, Sep. 2006.
123. 山崎 悦史, 犬塚 史一, 米永 一茂, Atsushi Takada and 古賀 正文 :
搬送波位相同期WDMによるチャネル間非線形クロストーク補償法(1)-提案と原理実証-,
2006年電子情報通信学会ソサイエティ大会, No.B-10-60, -, Sep. 2006.
124. 小野 隆, Atsushi Takada, 古賀 正文, 滝澤 真一朗 and 松岡 聡 :
光バーストスイッチング技術のGridアプリケーションへの適用,
2006年電子情報通信学会ソサイエティ大会, No.B-12-10, -, Sep. 2006.
125. 山崎 悦史, Atsushi Takada, 犬塚 史一, 山涌 純 and 遊部 雅生 :
分極反転光デバイスのフォトニックネットワーク応用,
第53回春季応用物理学関係連合講演会, No.-, -, Mar. 2006.
126. 山崎 悦史, Weichenberg Guy and Atsushi Takada :
偏波無依存パラメトリック高速任意波長変換,
2006年電子情報通信学会総合大会, No.B-10-26, -, Mar. 2006.
127. 山崎 悦史, Weichenberg Guy, 犬塚 史一, Atsushi Takada, 山涌 純 and 盛岡 敏夫 :
QPM-LN 導波路を用いた低クロストーク10Gbit/s×64 波長一括変換,
2006年電子情報通信学会総合大会, No.B-10-27, -, Mar. 2006.
128. 犬塚 史一, 山崎 悦史, Atsushi Takada, 米永 一茂 and 盛岡 敏夫 :
隣接チャネルデータを用いたWDM クロストーク補償符号化,
2006年電子情報通信学会総合大会, No.B-10-64, -, Mar. 2006.
129. 八木 毅, 松田 和浩, 小野 隆, Atsushi Takada, 加納 慎也, 森 和行, 片岡 幹雄 and 西岡 到 :
光バースト・テラビット級スーパーネットワークの実験,
2006年電子情報通信学会総合大会, No.B-7-24, -, Mar. 2006.
130. 高 聖明, 吉間 聡, 山崎 悦史, Atsushi Takada and 北山 研一 :
光符号ラベル制御パケットを用いた波長変換高速OBSの実証実験,
2006年電子情報通信学会総合大会, No.B-10-34, -, Mar. 2006.
131. 小野 隆, 佐原 明夫 and Atsushi Takada :
波長選択による光バーストスイッチングの輻輳制御,
2006年電子情報通信学会総合大会, No.B-10-32, -, Mar. 2006.
132. 小野 隆, Atsushi Takada, 古賀 正文, 坂井 良男, 森 和行 and 河合 正昭 :
光バーストスイッチングの高速光パス制御技術,
2006年電子情報通信学会総合大会, No.B-10-33, -, Mar. 2006.
133. 小林 孝行, 佐藤 憲史, 山崎 悦史 and Atsushi Takada :
QPM-LN 波長変換器とSi-APDを用いた高感度光受信系,
2006年電子情報通信学会総合大会, No.B-10-78, -, Mar. 2006.
134. 山本 貴司, 小向 哲郎, 川西 悟基, 鈴木 和宣 and Atsushi Takada :
位相変調器と分散媒質を用いた光周波数コム発生,
2006年電子情報通信学会総合大会, No.B-10-20, -, Mar. 2006.
135. Atsushi Takada :
1000波ネットワーク実証実験から学ぶこと -フォトニックネットワークに関する光アクセス網高速広帯域通信技術の研究開発,
電子情報通信学会ソサイエティ大会(パネル討論会), No.-, -, Aug. 2005.
136. Atsushi Takada, 佐原 明夫, 小野 隆, 笠原 亮一, 山崎 悦史, 相澤 茂樹 and 古賀 正文 :
光バーストスイッチングによる高速光パス制御技術,
2005年電子情報通信学会ソサイエティ大会, No.BS-6-6, -, Aug. 2005.
137. 山崎 悦史, Atsushi Takada and 盛岡 敏夫 :
擬似位相整合LiNbO3導波路パラメトリック波長変換の信号対雑音電力比劣化,
2005年電子情報通信学会総合大会, No.B-10-106, -, Mar. 2005.
138. Jun Yamawaku, Etsushi Yamazaki, Atsushi Takada, Toshio Morioka and Kazunori Suzuki :
Demonstration of Virtual grouped-wavelength-path switching based on QPM-LN waveband converter with supercontinnum wavelength-bank source,
2005年電子情報通信学会総合大会, No.B-10-77, 367, Mar. 2005.
(CiNii: 1570009752041373568)
139. 山涌 純, Atsushi Takada and 盛岡 敏夫 :
擬似位相整合LiNbO3光導波路を用いた波長変換におけるパラメトリッククロストークの実験的検討,
2004年電子情報通信学会ソサイエティ大会, No.B-10-58, -, 2004.
140. 山崎 悦史, Atsushi Takada, 山涌 純 and 盛岡 敏夫 :
パラメトリック波長変換器の雑音による線形増幅中継段数制限,
2004年電子情報通信学会総合大会, No.B-10-74, -, 2004.
141. 山崎 悦史, Atsushi Takada, 山涌 純, 盛岡 敏夫, 宮澤 弘, 忠永 修 and 遊部 雅生 :
光周波数シフタを用いた周回型高速波長変換光回路,
レーザー学会第24回年次大会, No.30aVII3, -, 2004.
142. 山涌 純, 高良 秀彦, 大原 拓也, 佐藤 憲史, Atsushi Takada, 盛岡 敏夫, 忠永 修, 宮澤 弘 and 遊部 雅生 :
波長群パスネットワークと一括波長変換技術の検討,
電子情報通信学会技術報告, No.PN-2003-17, -, 2003.
143. 山涌 純, 高良 秀彦, 大原 拓也, 佐藤 憲史, Atsushi Takada, 盛岡 敏夫, 忠永 修, 宮澤 弘 and 遊部 雅生 :
擬似位相整合LiNbO3 導波路を用いた25GHz 間隔103ch x 10 Gbit/s (103Tbit/s) 多チャンネル光のバンド間一括波長変換実験,
2003年電子情報通信学会ソサイエティ大会, No.B-10-106, -, 2003.
144. 山崎 悦史, Atsushi Takada and 朴 辰憲 :
光周波数グリッド上で動作する波長変換回路,
2003年電子情報通信学会総合大会, No.B-10-53, -, 2003.
145. 山涌 純, 忠永 修, Atsushi Takada, 宮澤 弘, 山崎 悦史 and 遊部 雅生 :
擬似位相整合LiNbO3 導波路を用いた2 波長励起による任意波長変換実験,
2003年電子情報通信学会総合大会, No.B-10-54, -, 2003.
146. Atsushi Takada and 朴 辰憲 :
超高速光バースト/パケットリングネットワークの構成法について,
信学技報NS-2002-220, No.OCS2002-110, -, 2003.
147. 朴 辰憲 and Atsushi Takada :
超高速光パケット転送リングネットワークにおけるQoSシミュレーション,
2002年電子情報通信学会, No.-, -, 2002.
148. 朴 辰憲 and Atsushi Takada :
超高速光パケットリングネットワークの構成と性能評価,
電子情報通信学会技術報告, No.CS-2002, -, 2002.
149. 山涌 純, Atsushi Takada and 山崎 悦史 :
2次光非線形媒質を用いた任意波長変換の検討,
2002年電子情報通信学会ソサイエティ大会, No.B-10-83, -, 2002.
150. 山涌 純, Atsushi Takada, 今宿 亙, 長津 尚英 and 盛岡 敏夫 :
波長群ルーティングネットワークの設備量評価と一括波長群変換デバイスについての一検討,
電子情報通信学会技術報告, No.OCS2002-12, -, 2002.
151. 山涌 純, Atsushi Takada and 盛岡 敏夫 :
2次光非線形効果のカスケーディングと3次光非線形効果による波長群一括変換時のチャネル間クロストーク量の比較,
2002年電子情報通信学会総合大会, No.-, -, 2002.
152. 山涌 純, 今宿 亙, Atsushi Takada and 岡本 聡 :
波長群パスルーティングネットワークの設備量評価,
2001年電子情報通信学会総合大会, No.-, -, 2001.
153. 山涌 純, 今宿 亙, Atsushi Takada, 岡本 聡 and 盛岡 敏夫 :
波長群パスの収容設計とネットワーク設備量評価,
電子情報通信学会技術報告, No.OCS2001-66, -, 2001.
154. 今宿 亙, 山涌 純, Atsushi Takada and 盛岡 敏夫 :
波長群ルーティング用パラメトリック波長変換回路の提案,
2000年電子情報通信学会総合大会, No.B-10, -, 2000.
155. 今宿 亙 and Atsushi Takada :
標準量子雑音限界以下の低雑音コヒーレント光増幅,
2000年電子情報通信学会総合大会, No.B-10, -, 2000.
156. Atsushi Takada, 今宿 亙, 片桐 祥雅 and 西 成人 :
モード同期半導体リングレーザの光位相同期-光PLL及び光注入同期-,
レーザ学会学術講演会第17回年次大会, No.-, -, 2000.
157. 朴 辰憲 and Atsushi Takada :
超高速光パケットリングネットワークプロテクション法の検討,
2000年電子情報通信学会ソサイエティ大会, No.-, -, 2000.
158. 朴 辰憲, Atsushi Takada, 今宿 亙 and 山林 由明 :
超高速光パケットADMリングネットワークの構成法,
2000年電子情報通信学会総合大会, No.B-10-109, -, 2000.
159. Atsushi Takada and 今宿 亙 :
コヒーレント光増幅器とその光通信への応用,
日本学術振興会光エレクトロニクス第130委員会，第217回研究会, No.-, -, 2000.
160. 朴 辰憲, Atsushi Takada, 今宿 亙 and 山林 由明 :
光ラベルスイッチを用いた超高速リングネットワークの検討,
電子情報通信学会技術報告, No.PNI-2000-10, -, 2000.
161. 橋本 悦, Atsushi Takada and 内山 健太郎 :
フォトニックダウンコンバージョンPLL技術の光通信への応用,
電子情報通信学会技術報告, No.CS99-130, -, 2000.
162. Atsushi Takada and 今宿 亙 :
光位相同期励起光を用いた四光波混合によるコヒーレント波長変換,
1999年電子情報通信学会総合大会, No.-, -, 1999.
163. 橋本 悦, Atsushi Takada and 片桐 祥雅 :
フォトニックダウンコンバージョンPLL制御衝突パルスモード同期半導体レーザから発生したサブテラヘルツ光パルス列の低ジッタ化,
1998年電子情報通信学会ソサイエティ大会, No.-, -, 1998.
164. 今宿 亙 and Atsushi Takada :
光注入-光PLL併用法を用いた位相感応型光増幅器のエラーフリー動作,
1998年電子情報通信学会ソサイエティ大会, No.-, -, 1998.
165. Atsushi Takada and 今宿 亙 :
能動モード同期半導体リングレーザの光パルス注入による光位相同期,
1998年春季第45回応用物理学関係連合講演会, No.-, -, 1998.
166. 今宿 亙 and Atsushi Takada :
光注入同期と光PLLの併用による位相感応型光増幅器の安定化,
1998年電子情報通信学会総合大会, No.-, -, 1998.
167. 橋本 悦, Atsushi Takada and 片桐 祥雅 :
PLL制御衝突モード同期半導体レーザを用いたサブテラヘルツ光パルス列の同期,
1998年電子情報通信学会総合大会, No.-, -, 1998.
168. 片桐 祥雅, Atsushi Takada, 西 成人, Hirofumi Abe, 上西 裕司 and 長岡 新二 :
繰り返し周波数可変マイクロメカニカル受動モード同期半導体レーザ,
1997年電子情報通信学会総合大会, No.-, Mar. 1997.
169. 今宿 亙 and Atsushi Takada :
位相感応光増幅器(PSA)による変調不安定性の抑圧,
電子情報通信学会総合大会, No.B-10, -, 1997.
170. Atsushi Takada and 今宿 亙 :
光注入同期により光位相同期した励起光源を用いた光位相感応増幅実験,
1997年電子情報通信学会ソサイエティ大会, No.B-10-149, -, 1997.
171. Atsushi Takada and 今宿 亙 :
光位相同期励起光源を有する光位相感応型光増幅器の実験検討,
電子情報通信学会技術報告, No.OCS97-87, -, 1997.
172. 今宿 亙 and Atsushi Takada :
変調不安定性を抑圧したPSA多中継伝送システムの設計,
電子情報通信学会技術報告, No.OCS-112/SSE-174, 1997.
173. 今宿 亙 and Atsushi Takada :
位相感応増幅器を用いた多中継伝送特性の理論検討,
電子情報通信学会技術報告, No.OCS96-5, 29-36, May 1996.
174. 今宿 亙 and Atsushi Takada :
位相感応光増幅器(PSA)を用いた多中継光伝送系の最大中継間隔,
1996年電子情報通信学会総合大会, No.B-1181, 19960000, Mar. 1996.
175. Atsushi Takada and 今宿 亙 :
光カー効果を用いた位相感応光増幅器の基本特性,
1996年電子情報通信学会総合大会, No.B-1180, Mar. 1996.
176. Atsushi Takada and 今宿 亙 :
ファイバ非線形ループミラを用いた位相感応型光増幅器,
電子情報通信学会技術報告, No.OCS-52, -, 1996.
177. 西 成人, Atsushi Takada and 猿渡 正俊 :
零分散波長のファイバ長手方向分布の測定法,
電子情報通信学会技術報告, No.OCS95-123, -, 1996.
178. 片桐 祥雅 and Atsushi Takada :
光変調側帯波を利用した位相同期ループによる受動モード同期半導体レーザからの同期光パルス発生,
1996年秋季応用物理学会講演会, No.9p-M-11, 875, 1996.
179. 西 成人, Atsushi Takada and 猿渡 正俊 :
零分散波長のファイバ長手方向分布の測定法,
電子情報通信学会技術報告, No.OCS95-123, 31-36, 1996.
180. 脇田 紘一, 佐藤 憲史, 小高 勇, 近藤 康洋, 山本 ミツ夫 and Atsushi Takada :
MQW光変調器/半導体レーザ集積化光源による短光パルスの発生と制御,
電子情報通信学会技術報告, No.OPE94-24, 55-60, Jun. 1994.
181. Atsushi Takada and 猿渡 正俊 :
光通信用短光パルス発生技術の検討,
電子情報通信学会技術報告, No.OQE94-77, 7-12, 1994.
182. 佐藤 憲史, 脇田 紘一, 小高 勇, 近藤 康洋, 山本 ミツ夫 and Atsushi Takada :
電界九州型光変調器を集積化した能動モード同期レーザ,
電子情報通信学会技術報告, No.LQE94-42, -, 1994.
183. 佐藤 憲史, 脇田 紘一, 小高 勇, 近藤 康洋, 山本 ミツ夫 and Atsushi Takada :
歪InGaAsPMQW電界吸収型光変調器を集積した能動モード同期レーザ,
応用物理学関係講演会, No.-, -, 1994.
184. Atsushi Takada, 猿渡 正俊 and 佐藤 憲史 :
MQW-EA変調器/MQWレーザの一体化光源からの能動モード同期光パルス特性,
応用物理学関係講演会, No.-, -, 1994.
185. 増田 浩次, Atsushi Takada, 中島 順, 西 成人 and 相田 一夫 :
ビットレートフレキシブル光増幅形線形中継器構成法の検討,
1992年電子情報通信学会春季全大, No.-, Mar. 1992.
186. 佐藤 良明, Atsushi Takada and 山林 由明 :
STMフレームスペクトル検出による線形中継伝送路の監視方法,
1993年電子情報通信学会春季大会, No.B-939, -, 1992.
187. 高良 秀彦, Atsushi Takada and 猿渡 正俊 :
光スイッチを用いたASE除去による高効率多段Er添加光ファイバ増幅器,
1991年電子情報通信学会秋季全国大会, No.B-618, -, 1991.
188. Atsushi Takada and 相田 一夫 :
LDパルス制御全光デマルチプレクサを用いた40Gb/s信号光の1/16パルス分離,
1991年電子情報通信学会秋季全国大会, No.B-664, -, 1991.
189. 増田 浩次, Atsushi Takada and 相田 一夫 :
148μm帯励起エルビウム添加光ファイバ増幅器の飽和特性,
1991年電子情報通信学会春季全国大会, No.C-311, -, 1991.
190. Atsushi Takada, 増田 浩次 and 相田 一夫 :
利得分布エルビウム添加光ファイバ伝送方式の検討,
1990年電子情報通信学会秋季全国大会, No.B-782, -, 1990.
191. 増田 浩次, Atsushi Takada and 相田 一夫 :
Er添加光ファイバ増幅器の温度特性の検討,
電子情報通信学会技術報告, No.OCS, -, 1990.
192. 増田 浩次 and Atsushi Takada :
Er添加ファイバ増幅器の二段増幅特性,
1990年電子情報通信学会春季全国大会, No.B-980, -, 1990.
193. Atsushi Takada and 宮澤 弘 :
Er3+添加光ファイバリングレーザの高調波モード同期による30GHzパルスの発生,
1990年応用物理学関係講演会, No.-, 1990.
194. 萩本 和男, Atsushi Takada, 宮川 裕三, 河野 健治 and 東盛 裕一 :
ファイバ増幅器を用いた5Gb/s，201 km光伝送実験,
1989年電子情報通信学会秋季全国大会, No.B-430, -, 1989.
195. Atsushi Takada, 岩月 勝美 and 猿渡 正俊 :
LD励起Er3+ドープ光ファイバレーザ増幅器とゲインスイッチ半導体レーザを用いた2Wピコ秒パルスの発生,
1989年電子情報通信学会秋季全国大会, No.B-431, -, 1989.
196. 岩月 勝美, Atsushi Takada, 西 成人 and 猿渡 正俊 :
全半導体レーザによる光ソリトン伝搬,
1989年電子情報通信学会秋季全国大会, No.B-434, -, 1989.
197. 萩本 和男, Atsushi Takada, 相田 一夫 and 中川 清 :
ファイバ増幅器を用いた長スパンギガビット/秒光伝送システムの検討,
電子情報通信学会技術報告, No.OCS, -, 1989.
198. 増田 浩次 and Atsushi Takada :
位相同期半導体アレイレーザのモード同期法による短光パルス発生,
応用物理学関係講演会, No.-, 839, 1989.
199. Atsushi Takada, 岩月 勝美 and 猿渡 正俊 :
半導体レーザによる高速・高出力超短光パルスの発生,
昭和63年電子情報通信学会秋季全国大会, No.C-169, -, 1988.
200. 岩月 勝美, Atsushi Takada and 猿渡 正俊 :
半導体レーザによる光ソリトン効果の観測,
昭和63年電子情報通信学会秋季全国大会, No.C-170, -, 1988.
201. 山林 由明, Atsushi Takada and 猿渡 正俊 :
LiNbO3導波路と超短光パルスを用いた光サンプリング,
昭和63年電子情報通信学会春季全国大会, No.No 671, -, 1988.
202. Atsushi Takada, 山林 由明 and 猿渡 正俊 :
ゲインスイッチ法による超短光パルスの直接変調,
昭和63年電子情報通信学会春季全国大会, No.No 670, -, 1988.
203. Atsushi Takada and 猿渡 正俊 :
超短光パルスの発生と変調の基礎検討,
電子情報通信学会技術報告, No.CS, 45-50, 1987.
204. Atsushi Takada and 猿渡 正俊 :
外部変調//多重による50Gb/s超短光パルス列の発生,
電子情報通信学会部門別全国大会, No.No 2359, 237, 1987.
205. Atsushi Takada, 杉江 利彦 and 猿渡 正俊 :
半導体レーザを用いた高速超短光パルスの発生技術,
電子情報通信学会技術報告, No.CS, 61-68, 1986.
206. Atsushi Takada, 杉江 利彦 and 猿渡 正俊 :
DFB-LDの光パルス圧縮を利用したパルス幅制御に関する検討,
昭和61年電子情報通信学会秋季全国大会, No.No 229, -, 1986.
207. Atsushi Takada, 杉江 利彦 and 猿渡 正俊 :
DFB-LDのモード同期による超短光パルス発生に関する検討,
昭和60年電子情報通信学会秋季全国大会, No.-, -, 1986.
208. 杉江 利彦, Atsushi Takada and 本杉 常治 :
高速化DFB-LDの大振幅特性,
昭和60年電子情報通信学会秋季全国大会, No.No 323, -, 1985.
209. Atsushi Takada, 杉江 利彦 and 猿渡 正俊 :
光ファイバを用いたチャープ補償によるDFB-LDの超短光パルス圧縮技術,
昭和60年電子情報通信学会秋季全国大会, No.No 324, -, 1985.
210. 斉藤 茂, Atsushi Takada and 山本 喜久 :
キャリア効果による半導体レーザのレッドシフト形FM変調,
応用物理学会講演会, No.-, 31, 1985.
211. 杉江 利彦, Atsushi Takada and 猿渡 正俊 :
アイソレータ内蔵形DFB-LDモジュールの検討,
昭和59年電子情報通信学会秋季全国大会, No.-, -, 1984.
212. Atsushi Takada, 植村 卓司, 朗裕 森本, 小林 哲郎 and 末田 正 :
超高速光空間変調による短光パルス発生,
昭和58年電子情報通信学会技術報告, No.OQE83, 33-39, 1983.

Et cetera, Workshop:

1. Yasuhiro Okamura and Atsushi Takada :
Waveband-shift free optical phase-conjugation with difference frequency generation,
1 st AiPT International All-Optical Signal Processing Workshop, Apr. 2022.
2. Atsushi Takada and Yasuhiro Okamura :
光パラメトリック技術と光ファイバ通信への応用,
第一回 電子情報通信学会支部CoEシンポジウム 光をコアとするセンターオブエクセレンス(CoE)を目指して ー 四国から世界へ ー, Jan. 2021.
3. Yasuhiro Okamura and Atsushi Takada :
Pump Phase-Locking Techniques for Frequency Non-Degenerate Optical Parametric Phase-Sensitive Amplifier Repeaters,
11th International Workshop on Optical signal processing and Optical switching (IWOO 2016), Nov. 2016.
4. Takeshi Umeki, Shigehiro Takasaka, Yasuhiro Okamura, Hirokazu Takenouchi, Ryuichi Sugizaki, Atsushi Takada and Yutaka Miyamoto :
R&D on Optical Parametric Amplifiers in Coherent lambda Project,
21st Optoelectronics and Communications Conference / International Conference on Photonics in Switching 2016 (OECC/PS 2016), Jul. 2016.
5. Yasuhiro Okamura and Atsushi Takada :
Frequency Nondegenerate Optical Parametric Phase-Sensitive Amplifiers with Optical Phase-Locked Loop Circuit for Multi-Span Transmission Systems,
10th International Workshop on Optical signal processing and Optical switching (IWOO 2015), Nov. 2015.
6. 水鳥 明, 菅本 真陸, Atsushi Takada and 古賀 正文 :
Costas loop base homodyne detection for 12.5-Gbit/s BPSK signal and its evolution to optical frequency synchronous photonic network,
技術報告, Vol.OCS112, No.310, 7-10, Nov. 2012.
7. Atsushi Takada and 古賀 正文 :
Repeated Optical Fiber Transmission Technology Using Phase-Sensitive Optical Amplification,
光ネットワークシステム171委員会, Vol.44, 1-3, Jul. 2012.
8. Miyoshi Shumpei, Hashimoto Keisuke and Atsushi Takada :
Simulation on regenerative repeater span-length in an optical BPSK transmission system employing phase-sensitive amplifiers,
電子情報通信学会光通信システム研究会技術研究報告, Vol.110, No.392, 61-66, Jan. 2011.

Report:

1. Yoshihiko Ueno, Yosuke Seki, Satoshi Kinugawa, Hisayoshi Morioka, Akira Takahashi, Kenji Mori, Naozumi Ishimaru, Kazumi Ozaki, Tetsuo Yamazaki, Atsushi Takada, Yoshihiro Uto, Takahito Saito and Maiko Kamioka :
令和4年度 徳島大学高等教育研究センターアドミッション部門 報告書,
令和4年度 徳島大学高等教育研究センターアドミッション部門 報告書, Mar. 2023.

Patent:

1. 山崎 悦史, Atsushi Takada and 山涌 純 : 波長変換回路及び波長変換方法, 2002-242001, 2004-093583 (Aug. 2002), 4080819 (Feb. 2008).
2. 山涌 純, Atsushi Takada and 盛岡 敏夫 : 任意波長変換回路および複合波長バンド分配型任意波長変換回路, 2001-258316, 2003-066498 (Aug. 2001), 3771823 (Feb. 2006).
3. 今宿 亙, 森 邦彦 and Atsushi Takada : 光パラメトリック回路, 2001-062608, 2002-182256 (Mar. 2001), 3575434 (Jul. 2004).
4. 朴 辰憲 and Atsushi Takada : 2001-57042, 2002-261782 (Mar. 2001), 3611798 (Oct. 2004).
5. 朴 辰憲, Atsushi Takada and 内山 健太郎 : 光パケット圧縮回路, 2001-057041, 2002-261691 (Mar. 2001), 3519374 (Jan. 2004).
6. Atsushi Takada, 朴 辰憲, 今宿 亙 and 山林 由明 : 超高速光パケット転送リングネットワーク, 2000-052461, 2001-244980 (Feb. 2000), 3578960 (Jul. 2004).
7. 今宿 亙 and Atsushi Takada : 光増幅器, 11-309480, 2001-125154 (Oct. 1999), 3545977 (Apr. 2004).
8. 今宿 亙 and Atsushi Takada : 光パラメトリック回路, 11-309481, 2001-125159 (Oct. 1999), 3545660 (Apr. 2004).
9. 橋本 悦 and Atsushi Takada : 光パルス発生装置, 10-242830, 2000-077768 (Aug. 1998), 3571539 (Jul. 2004).
10. 今宿 亙 and Atsushi Takada : 光位相．光周波数同期光源及び回路, 10-232760, 2000-068580 (Aug. 1998), 3411832 (Mar. 2003).
11. 高良 秀彦, Atsushi Takada and 山林 由明 : 波長分散補償回路, 10-156072, 11-355207 (Jun. 1998), 3302924.
12. 野中 弘二, Atsushi Takada and 山林 由明 : 光波形変換回路, 10-051641, 11?251672 (Mar. 1998), 51641.
13. 今宿 亙 and Atsushi Takada : 光位相同期光源, 9-301690, 11?133472 (Nov. 1997), 3459166 (Aug. 2003).
14. 片桐 祥雅 and Atsushi Takada : 標準光周波数発生装置, 9-155011, 11-004037 (Jun. 1997), 3527617 (Feb. 2004).
15. 今宿 亙 and Atsushi Takada : 全光型光位相同期方法及び光位相同期光源, 09-154032, 11-002846 (Jun. 1997), 3434169 (May 2003).
16. 片桐 祥雅 and Atsushi Takada : 超高速同期パルス光源, 8-216388, 10-65255 (Aug. 1996), 216388 (Jun. 2004).
17. 今宿 亙 and Atsushi Takada : 光増幅器および光増幅中継伝送システム, 8-179680, 9-222622 (Jul. 1996), 3473811 (Sep. 2003).
18. 片桐 祥雅, Atsushi Takada, 西 成人 and 猿渡 正俊 : 半導体レーザ装置, 8-63555, 09-260768 (Mar. 1996), 3356255 (Oct. 2002).
19. Atsushi Takada, 片桐 祥雅, 西 成人 and 猿渡 正俊 : パルス光源, 8-000991, 9-191147 (Jan. 1996), 3351212 (Sep. 2002).
20. Atsushi Takada, 岩月 勝美 and 猿渡 正俊 : 通信用パルス光源装置, 5-136051, 6-350174 (Jun. 1993), 3237727 (Oct. 2000).
21. 増田 浩次, 中川 清司, 相田 一夫 and Atsushi Takada : 光増幅器, 4-49743, 05-251797 (Mar. 1993), 2620451 (Mar. 1997).
22. 山林 由明, Atsushi Takada, 松岡 伸治 and 佐藤 由明 : 光伝送路監視方法, 4-74781, 05-284120 (Mar. 1992), 3114824 (Sep. 2000).
23. 高良 秀彦, Atsushi Takada and 猿渡 正俊 : 多段光増幅装置, 3-156869, 05-005912 (Jun. 1991), 2919118 (Apr. 1999).
24. Atsushi Takada, 萩本 和男 and 相田 一夫 : 光増幅器, 2-129249, 04-025822 (May 1990), 2786517 (May 1990).
25. Atsushi Takada, 増田 浩次 and 萩本 和男 : 光増幅器, 2-29487, 03-235924 (Feb. 1990), 2619096 (Mar. 1997).
26. Atsushi Takada and 山林 由明 : モード同期レーザ装置, 2-24416, 3-229478 (Feb. 1990), 2604479 (Jan. 1997).
27. 宝川 幸司, Atsushi Takada and 中川 清司 : 光記憶装置, 1-246333, 3-113799 (Sep. 1989), 2758230 (Mar. 1998).
28. 宝川 幸司, Atsushi Takada and 中川 清司 : 光記憶装置, 1-215047, 3-80496 (Aug. 1989), 2758224 (Mar. 1998).
29. Atsushi Takada, 岩月 勝美 and 猿渡 正俊 : 超短光パルス発生装置, 1-196519, 3-61928 (Jul. 1989), 2520961 (May 1996).
30. Atsushi Takada and 萩本 和男 : モード同期ファイバレーザ装置, 1-131540, 2-310982 (May 1989), 2501468 (Mar. 1996).
31. Atsushi Takada, 川西 悟基 and 猿渡 正俊 : 光PLL回路, 62-285968, 1-126631 (Nov. 1987), 2614873 (Feb. 1997).
32. 山林 由明 and Atsushi Takada : 光パルス発生回路およびスペクトル測定装置, 62-94539, 63-261120 (Apr. 1987), 2791771 (Jun. 1998).
33. Atsushi Takada, 猿渡 正俊 and 吉開 範章 : 光パルス多重化回路, 62-85175, 63-249827 (Apr. 1987), 2048048 (Apr. 1996).
34. Atsushi Takada, 杉江 利彦 and 猿渡 正俊 : 超高速光パルス発生装置, 61-117647, 62-274787 (May 1986), 1972135 (Sep. 1995).
35. 中山 薫, 中土井 祐, 羽岡 侑哉, Atsushi Takada and Yasuhiro Okamura : 水中通信システムおよび水中通信方法, 2021-035621 (2021), .
36. 梅木 毅伺, 風間 拓志, 小林 孝行, 笠原 亮一, 宮本 裕, Atsushi Takada and Yasuhiro Okamura : 光増幅器性能評価方法および評価回路, 2018-060629 (Mar. 2018), 2019-174550 (2019), .
37. 梅木 毅伺, 風間 拓志, 小林 孝行, 笠原 亮一, 宮本 裕, Yasuhiro Okamura and Atsushi Takada : 励起光位相同期ループ回路および励起光位相同期方法, 2018-060743 (Mar. 2018), 2019-174558 (2019), .
38. Atsushi Takada, Yasuhiro Okamura and Masafumi Koga : 位相感応型光増幅器及び励起光位相同期回路, (Feb. 2014), P11134 (Feb. 2014).
39. Atsushi Takada, Yasuhiro Okamura and Masafumi Koga : 増幅中継光ファイバ伝送システム及び光ファイバ伝送システム用増幅中継器, (Aug. 2013), 2015-050670 (2015), .

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

  • Phase sensitive amplified repeated optical fiber transmission system using carrier phase locked optical time domain multiplexed signal ligtht (Project/Area Number: 20H02153 )
  • Research on achieving higher coherence CEP controlled optical comb towards realizing optical frequency synchronous networks (Project/Area Number: 23360173 )
  • Study of phase sensitive amplifier repeater (Project/Area Number: 22360155 )
  • Generation of Optical frequency comb reference based on carrier-envelope offset phase locking technologies and its application to optical frequency synchronous photonic network (Project/Area Number: 20360175 )
  • Search by Researcher Number (00548563)