Takahide Sakamoto

45 papers Journal 23Unranked 22

Year	Rank	Type	Title / Venue / Authors
2025	J	`jnl`	Fiber Nonlinearity Compensation Using Nonlinear Equalizer Based on Complex-Valued Reservoir Computing. IEICE Trans. Commun. Kai Ikuta, Yuta Ito, Takahide Sakamoto, Naokatsu Yamamoto, Moriya Nakamura
2024	—	`conf`	Filter-Less Synthesis of 50-GHz Double-Spaced Flat Optical Comb by In-phase/Quadrature Electro-Optic Modulator for High Bandwidth Transmission. OFC Shun Harada, Tatsuki Ishijima, Takahide Sakamoto
2023	—	`conf`	Nonlinear Tolerant Conjugated RoF System Secured by Physical Layer Encryption with Deliberate Signal Randomization. OFC Tatsuki Ishijima, Shuhei Otsuka, Shun Harada, Takahide Sakamoto, Ken Tanizawa, Fumio Futami
2023	—	`conf`	Parallel Extension of High-Speed Analog-Circuit FIR Equalizer for Low-Latency Optical Transceiver/Receiver. OFC Shuhei Otsuka, Ryo Koguchi, Takahide Sakamoto
2020	J	`jnl`	Variable-linewidth light source based on Brownian motion random walk in optical phase. IEICE Electron. Express Jun Mochizuki, Keizo Inagaki, Guo-Wei Lu, Takahide Sakamoto, Yuki Yoshida, Atsushi Kanno, Naokatsu Yamamoto, Tetsuya Kawanishi
2019	—	`conf`	Simultaneous Compensation of Fiber Nonlinearity and Dispersive Fading Effects by Conjugated-Paired Radio-on-Fiber Transmission with Phase-Shifted Dual-Sideband Downconversion. OECC/PSC Takahide Sakamoto, Guo-Wei Lu, Naokatsu Yamamoto, Tetsuya Kawanishi
2018	—	`conf`	400-Gbps Space Division Multiplexing Optical Wireless Communication Using Two-Dimensional Photodetector Array. ECOC Toshimasa Umezawa, Takahide Sakamoto, Atsushi Kanno, Shinya Nakajima, Atsushi Matsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi
2018	—	`conf`	High-speed Two-dimensional Photodetector Array for 4-WDM 25-Gbaud FSO Communication. OFC Toshimasa Umezawa, Takahide Sakamoto, Atsushi Kanno, Kouichi Akahane, Atsushi Matsumoto, Naokatsu Yamamoto, Tetsuya Kawanishi
2017	—	`conf`	Optical Subcarrier Processing for Nyquist SCM via Coherent Spectrum Overlapping in FWM with Coherent Pump. ECOC Guo-Wei Lu, Ruben S. Luis, Jose Manuel Delgado Mendinueta, Takahide Sakamoto, Naokatsu Yamamoto
2017	J	`jnl`	Simple Self-Homodyne Detection Scheme for Optical OFDM With Inserted Pilot Subframes and Application in Optical Access Networks. IEEE Access Guo-Wei Lu, Xun Guan, Takahide Sakamoto, Naokatsu Yamamoto, Calvin Chun-Kit Chan
2017	—	`conf`	Spatial Coherent Matched Detection Using High-Speed Two Dimensional Photo-Diode Array for Full-Channel Demultiplexing and Demodulation of Mode-Division-Multiplexed Signals. ECOC Takahide Sakamoto, Toshimasa Umezawa, Guo-Wei Lu, Kouichi Akahane, Atsushi Matsumoto, Atsushi Kanno, Naokatsu Yamamoto, Tetsuya Kawanishi
2017	—	`conf`	Ultrafast demultiplexing of optical time-division multiplexed signals by parallel opto-electronic time-frequency domain sampling. OFC Takahide Sakamoto, Guo-Wei Lu, Naokatsu Yamamoto
2016	J	`jnl`	Flexible high-order QAM transmitters for elastic optical networks. Photonic Netw. Commun. Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
2016	—	`conf`	Opto-electronic time-frequency domain sampling for ultra high-bandwidth multi-carrier signal detection. OFC Takahide Sakamoto
2016	J	`jnl`	Ultrashort optical pulse source using Mach-Zehnder-modulator-based flat comb generator. Nano Commun. Networks Isao Morohashi, Takahide Sakamoto, Norihiko Sekine, Akifumi Kasamatsu, Iwao Hosako
2015	J	`jnl`	Generation of Arbitrarily Patterned Pulse Trains in the THz Range by Spectral Synthesis of Optical Combs. IEICE Trans. Electron. Isao Morohashi, Takahide Sakamoto, Norihiko Sekine, Tetsuya Kawanishi, Akifumi Kasamatsu, Iwao Hosako
2015	—	`conf`	Laser-phase-fluctuation-insensitive optical coherent transmission of 16-QAM radio-over-fiber signal with offset-frequency-spaced two-tone local light. OFC Toshiaki Kuri, Takahide Sakamoto, Tetsuya Kawanishi
2015	—	`conf`	Loop-assisted multi-input-multi-output coherent matched detector for ultra high-bandwidth parallel optical time-frequency domain sampling. OFC Takahide Sakamoto, Guo-Wei Lu, Tetsuya Kawanishi
2015	—	`conf`	Multifunctional all-optical signal processing scheme for simultaneous multichannel WDM multicast and XOR logic gates based on FWM in QD-SOA. OFC Danshi Wang, Min Zhang, Guo-Wei Lu, Jun Qin, Takahide Sakamoto, Kouichi Akahane, Naokatsu Yamamoto, Tetsuya Kawanishi, Ze Li, Yue Cui
2015	—	`conf`	Oppositely-biased dual-polarization IQ modulators for nonlinearity-tolerant polarization-multiplexed phase-conjugated twin-signals generation. ECOC Takahide Sakamoto, Guo-Wei Lu, Tetsuya Kawanishi
2015	—	`conf`	Optical comb-based versatile wavelength division multicasting add-drop node for efficient WDM networks. OFC Jun Sakaguchi, Takahide Sakamoto, Atsushi Kanno, Yoshinari Awaji, Naoya Wada, Tetsuya Kawanishi
2015	—	`conf`	Pump-phase-noise-tolerant wavelength multicasting for QAM signals using flexible coherent multi-carrier pump. OFC Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
2015	J	`jnl`	Sub-THz radio-over-fiber signal generation using external modulation. IEICE Electron. Express Tetsuya Kawanishi, Takahide Sakamoto, Atsushi Kanno
2014	—	`conf`	Coherently-pumped FWM in HNLF for 16QAM wavelength conversion free of phase noise from pumps. ECOC Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
2014	—	`conf`	Error-free and laser-phase-noise-insensitive optical coherent transmission of uplink radio-over-fiber signal. OFC Toshiaki Kuri, Takahide Sakamoto, Guo-Wei Lu, Tetsuya Kawanishi
2014	—	`conf`	Pump-linewidth-tolerant optical data exchange between 16QAM and QPSK with 50-GHz channel-spacing using coherent DFB pump. ECOC Guo-Wei Lu, Andre A. C. Albuquerque, Benjamin J. Puttnam, Takahide Sakamoto, Miguel V. Drummond, Rogério Nogueira, Atsushi Kanno, Satoshi Shinada, Naoya Wada, Tetsuya Kawanishi
2014	—	`conf`	Time-interleaved carrier-suppressed return-to-zero QPSK for filter-less dual-carrier transmission. OFC Takahide Sakamoto, Guo-Wei Lu, Tetsuya Kawanishi
2013	—	`conf`	Filter-less multi-tone coherent orthogonal detection for multi-channel reception of super-channel/OFDM signals. OFC/NFOEC Takahide Sakamoto, Guo-Wei Lu, Tetsuya Kawanishi
2013	J	`jnl`	Generation of Millimeter Waves with Fine Frequency Tunability Using Mach-Zehnder-Modulator-Based Flat Comb Generator. IEICE Trans. Electron. Isao Morohashi, Yoshihisa Irimajiri, Takahide Sakamoto, Tetsuya Kawanishi, Motoaki Yasui, Iwao Hosako
2013	—	`conf`	Optical 64QAM transmitter using tandem IQ modulators with balanced complexity in electronics and optics. OFC/NFOEC Guo-Wei Lu, Takahide Sakamoto, Tetsuya Kawanishi
2011	J	`jnl`	20-Gb/s QPSK W-band (75-110GHz) wireless link in free space using radio-over-fiber technique. IEICE Electron. Express Atsushi Kanno, Keizo Inagaki, Isao Morohashi, Takahide Sakamoto, Toshiaki Kuri, Iwao Hosako, Tetsuya Kawanishi, Yuki Yoshida, Ken-ichi Kitayama
2011	J	`jnl`	90 Gbaud NRZ-DP-DQPSK Modulation with Full-ETDM Technique Using High-Speed Optical IQ Modulator. IEICE Trans. Electron. Atsushi Kanno, Takahide Sakamoto, Akito Chiba, Masaaki Sudo, Kaoru Higuma, Junichiro Ichikawa, Tetsuya Kawanishi
2011	J	`jnl`	Synthesis of 16 Quadrature Amplitude Modulation Using Polarization-Multiplexing QPSK Modulator. IEICE Trans. Commun. Isao Morohashi, Takahide Sakamoto, Masaaki Sudo, Atsushi Kanno, Akito Chiba, Junichiro Ichikawa, Tetsuya Kawanishi
2010	J	`jnl`	120-Gb/s NRZ-DQPSK signal generation by a thin-lithium-niobate-substrate modulator. IEICE Electron. Express Atsushi Kanno, Takahide Sakamoto, Akito Chiba, Tetsuya Kawanishi, Kaoru Higuma, Masaaki Sudou, Junichiro Ichikawa
2009	J	`jnl`	Integrated Lithium Niobate Mach-Zehnder Interferometers for Advanced Modulation Formats. IEICE Trans. Electron. Tetsuya Kawanishi, Takahide Sakamoto, Akito Chiba
2008	J	`jnl`	Simple, low fluctuation voltage signal generation for 8-Gb/s quadrature amplitude modulation using dual-parallel Mach-Zehnder modulator. IEICE Electron. Express Akito Chiba, Takahide Sakamoto, Tetsuya Kawanishi, Masayuki Izutsu
2006	J	`jnl`	An optical grating filter dry-etched on a LiNbO IEICE Electron. Express Satoshi Shinada, Tetsuya Kawanishi, Takahide Sakamoto, Masayuki Izutsu
2006	J	`jnl`	Optical filter characterization by using optical frequency sweep technique with a single sideband modulator. IEICE Electron. Express Tetsuya Kawanishi, Takahide Sakamoto, Masayuki Izutsu
2005	J	`jnl`	10Gbit/s FSK transmission over 95km SMF using a LiNbO IEICE Electron. Express Takahisa Fujita, Tetsuya Kawanishi, Kaoru Higuma, Junichiro Ichikawa, Satoshi Shinada, Takahide Sakamoto, Masayuki Izutsu
2005	J	`jnl`	Amplitude modulation on millimeter-wave signal with low driving voltage using reciprocating optical modulator. IEICE Electron. Express Takahide Sakamoto, Tetsuya Kawanishi, Satoshi Shinada, Masayuki Izutsu
2005	J	`jnl`	Integrated reciprocating optical modulator using phase-shifted fiber Bragg grating. IEICE Electron. Express Tetsuya Kawanishi, Satoshi Oikawa, Kiichi Yoshiara, Satoshi Shinada, Takahide Sakamoto, Masayuki Izutsu
2005	J	`jnl`	Optical FSK transmission with group delay compensated balance detection. IEICE Electron. Express Tetsuya Kawanishi, Takahisa Fujita, Kaoru Higuma, Junichiro Ichikawa, Takahide Sakamoto, Masayuki Izutsu
2005	J	`jnl`	Pulse-carving technique for suppressing transient state in external wideband FSK modulation. IEICE Electron. Express Takahide Sakamoto, Tetsuya Kawanishi, Masayuki Izutsu
2004	J	`jnl`	Optical FSK/IM Signal Generation Using an Integrated Optical FSK Modulator. IEICE Electron. Express Tetsuya Kawanishi, Kaoru Higuma, Takahisa Fujita, Junichiro Ichikawa, Satoshi Shinada, Takahide Sakamoto, Masayuki Izutsu
2004	J	`jnl`	Optical frequency comb generator using optical fiber loops with single-sideband modulation. IEICE Electron. Express Tetsuya Kawanishi, Takahide Sakamoto, Satoshi Shinada, Masayuki Izutsu