Advanced and feasible signal processing algorithm for nonlinear mitigation. - Takeshi Hoshida; Liang Dou; Weizhen Yan; Lei Li 041; Zhenning Tao; Shoichiro Oda; Hisao Nakashima; Chihiro Ohshima; Tomofumi Oyama; Jens C. Rasmussen (OFC/NFOEC, 2013)

Impact of pulse shaping and transceiver electrical bandwidths on nonlinear compensated transmission. - Tomofumi Oyama; Takeshi Hoshida; Hisao Nakashima; Chihiro Ohshima; Zhenning Tao; Jens C. Rasmussen (OFC/NFOEC, 2013)

Compact Optical Buffer Module for Intra-Packet Synchronization Based on InP 1×8 Switch and Silica-Based Delay Line Circuit. - Myung-Joon Kwack; Tomofumi Oyama; Yasuaki Hashizume; Shinji Mino; Masaru Zaitsu; Takuo Tanemura; Yoshiaki Nakano (IEICE Trans. Electron., 2013)

Digital nonlinear compensation for spectrally efficient superchannel transmission at 400Gbit/s and beyond. - Takeshi Hoshida; Takahito Tanimura; Tomofumi Oyama; Shoichiro Oda; Hisao Nakashima; Yangyang Fan; Liang Dou; Zhenning Tao; Jens C. Rasmussen (ECOC, 2014)

Impact of fiber nonlinearity on duobinary-QPSK in super-Nyquist WDM transmission. - Tomofumi Oyama; Takahito Tanimura; Hisao Nakashima; Takeshi Hoshida; Zhenning Tao; Jens C. Rasmussen (ECOC, 2014)

Robust and efficient receiver-side compensation method for intra-channel nonlinear effects. - Tomofumi Oyama; Hisao Nakashima; Shoichiro Oda; Tomohiro Yamauchi; Zhenning Tao; Takeshi Hoshida; Jens C. Rasmussen (OFC, 2014)

Experimental investigation on nonlinear tolerance of subcarrier multiplexed signals with spectrum optimization. - Hisao Nakashima; Takahito Tanimura; Tomofumi Oyama; Yuichi Akiyama; Takeshi Hoshida; Jens C. Rasmussen (ECOC, 2015)

Remotely pumped and high splitting ratio (1: 512) intra-PON flow transmission via a distantly powered quasi-passive reconfigurable (QPAR) node. - Shuang Yin; Yingying Bi; Thomas Shunrong Shen; Tomofumi Oyama; Leonid G. Kazovsky (ECOC, 2015)

Complexity reduction of perturbation-based nonlinear compensator by sub-band processing. - Tomofumi Oyama; Hisao Nakashima; Takeshi Hoshida; Takahito Tanimura; Yuichi Akiyama; Zhenning Tao; Jens C. Rasmussen (OFC, 2015)

PDL-tolerant signal generation by digital spectrum slicing and polarization control. - Takahito Tanimura; Tomofumi Oyama; Hisao Nakashima; Jens C. Rasmussen (OFC, 2015)

An Accurate and Robust In-phase/Quadrature Skew Measurement for Coherent Optical Transmitter by Image Spectrum Analyzing. - Hao Chen 058; Xiaofei Su; Zhenning Tao; Tomofumi Oyama; Hisao Nakashima; Takeshi Hoshida; Kazutoshi Kato (ECOC, 2017)

Digital nonlinear compensation technologies in coherent optical communication systems. - Hisao Nakashima; Tomofumi Oyama; Chihiro Ohshima; Yuichi Akiyama; Zhenning Tao; Takeshi Hoshida (OFC, 2017)

Reach extension with 32- and 64 GBaud single carrier vs. multi-carrier signals. - Olga Vassilieva; Inwoong Kim; Tomofumi Oyama; Shoichiro Oda; Hisao Nakashima; Takeshi Hoshida; Tadashi Ikeuchi (OFC, 2017)

Efficient Polarization Dependent Loss Monitoring and Compensation in Coherent Transmission System. - Guoxiu Huang; Yuichi Akiyama; Tomohiro Yamauchi; Shoichiro Oda; Tomofumi Oyama; Hisao Nakashima; Takeshi Hoshida (ECOC, 2018)

PDL Mitigation by Polarization-Time Codes with Simple Decoding and Pilot-Aided Demodulation. - Tomofumi Oyama; Hisao Nakashima; Yoshitaka Nomura; Guoxiu Huang; Takahito Tanimura; Takeshi Hoshida (ECOC, 2018)

Multilevel Coding with Spatially-Coupled Codes for beyond 400Gbps Optical Transmission. - Yohei Koganei; Tomofumi Oyama; Kiichi Sugitani; Hisao Nakashima; Takeshi Hoshida (OFC, 2018)

A Simple, Robust Two-Tone Method to Measure the Dynamic Nonlinear Characteristics of Phase Shifter in Silicon Mach-Zehnder Modulator. - Tong Ye; Yanhui Qi; Hao Chen 058; Zhenning Tao; Tomofumi Oyama; Hisao Nakashima; Takeshi Hoshida; Haowen Shu; Xingjun Wang (OFC, 2018)

Low-Complexity, Low-PAPR Polarization-Time Code for PDL Mitigation. - Tomofumi Oyama; Guoxiu Huang; Hisao Nakashima; Yoshitaka Nomura; Tomoo Takahara; Takeshi Hoshida (OFC, 2019)

Partial Multilevel Coding with Probabilistic Shaping for Low-power Optical Transmission. - Kiichi Sugitani; Yohei Koganei; Tomofumi Oyama; Hisao Nakashima (OECC/PSC, 2019)