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IEICE Trans

Takahide SAKAMOTO

Fiber Nonlinearity Compensation Using Nonlinear Equalizer Based on Complex-Valued Reservoir Computing
Kai IKUTA Yuta ITO Takahide SAKAMOTO Naokatsu YAMAMOTO Moriya NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2025/03/01
Vol. E108-B  No. 3  pp. 250-259
Type of Manuscript:  PAPER
Category: Fiber-Optic Transmission for Communications
Keyword: 
digital coherent transmission, optical nonlinearity mitigation, nonlinear equalization, reservoir computing, 
 Summary | Full Text:PDF
Generation of Arbitrarily Patterned Pulse Trains in the THz Range by Spectral Synthesis of Optical Combs
Isao MOROHASHI Takahide SAKAMOTO Norihiko SEKINE Tetsuya KAWANISHI Akifumi KASAMATSU Iwao HOSAKO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2015/08/01
Vol. E98-C  No. 8  pp. 793-798
Type of Manuscript:  Special Section PAPER (Special Section on Microwave Photonics)
Category: MWP Subsystem
Keyword: 
optical comb, Mach-Zehnder modulator, terahertz, ultra-wideband, 
 Summary | Full Text:PDF
Generation of Millimeter Waves with Fine Frequency Tunability Using Mach-Zehnder-Modulator-Based Flat Comb Generator
Isao MOROHASHI Yoshihisa IRIMAJIRI Takahide SAKAMOTO Tetsuya KAWANISHI Motoaki YASUI Iwao HOSAKO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/02/01
Vol. E96-C  No. 2  pp. 192-196
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Photonics Technology)
Category: 
Keyword: 
Mach-Zehnder modulator, optical comb, millimeter wave, terahertz wave, photomixing, 
 Summary | Full Text:PDF
Synthesis of 16 Quadrature Amplitude Modulation Using Polarization-Multiplexing QPSK Modulator
Isao MOROHASHI Takahide SAKAMOTO Masaaki SUDO Atsushi KANNO Akito CHIBA Junichiro ICHIKAWA Tetsuya KAWANISHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/07/01
Vol. E94-B  No. 7  pp. 1809-1814
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
modulation format electro-optic vector digital-to-analog converter, quadrature amplitude modulation, quad-parallel Mach-Zehnder modulator, polarization multiplexing, 
 Summary | Full Text:PDF
90 Gbaud NRZ-DP-DQPSK Modulation with Full-ETDM Technique Using High-Speed Optical IQ Modulator
Atsushi KANNO Takahide SAKAMOTO Akito CHIBA Masaaki SUDO Kaoru HIGUMA Junichiro ICHIKAWA Tetsuya KAWANISHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/07/01
Vol. E94-C  No. 7  pp. 1179-1186
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
Ti:LiNbO3 optical modulator, optical IQ modulator, quadrature phase shift keying, electrically time-division multiplexing, 
 Summary | Full Text:PDF
Integrated Lithium Niobate Mach-Zehnder Interferometers for Advanced Modulation Formats
Tetsuya KAWANISHI Takahide SAKAMOTO Akito CHIBA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/07/01
Vol. E92-C  No. 7  pp. 915-921
Type of Manuscript:  INVITED PAPER (Special Section on Recent Advances in Ultra-high-speed Photonic Devices for Next-generation Optical Fiber Communications)
Category: 
Keyword: 
optical modulator, quadrature amplitude modulation, lithium niobate, Mach-Zehnder interferometer, 
 Summary | Full Text:PDF