Hisao Nakashima

Publication Activity (10 Years)

Years Active: 1986-2024
Publications (10 Years): 38

Top Topics

Experimental Verification

Complexity Reduction

Top Venues

IEICE Trans. Commun.

Publications

Olga Vassilieva, Inwoong Kim, Hiroyuki Irie, Hisao Nakashima, Takeshi Hoshida, Paparao Palacharla
Impact of Symbol Rate Optimization and Laser Frequency Stability on Transmission Reach of Super-Channel Transceiver Configurations for Beyond 1.6 Tb/s. OFC (2024)
Tong Ye, Ke Zhang, Xiaofei Su, Jingnan Li, Hisao Nakashima, Takeshi Hoshida, Zhenning Tao
Distortion Characterization and Performance Estimation of Time-interleaved DAC and ADC Based on the Measurement of Nonlinear Noise Spectrum. OFC (2024)
Yo Nakamura, Guoxiu Huang, Hisao Nakashima, Takeshi Hoshida
Clock Recovery of a 180 Gbaud Faster-than-Nyquist Signal Enabled by a Novel Adaptive Equalizer-Aided Algorithm. OFC (2024)
Guoxiu Huang, Yo Nakamura, Hisao Nakashima, Takeshi Hoshida
240GBd-16QAM Single-Carrier Coherent Transmission over 120km SSMF for a Bandwidth Limited System with 1sps Speed and Simple DSP. OFC (2024)
Guoxiu Huang, Hisao Nakashima, Jun Matsui, Yohei Sobu, Shinsuke Tanaka, Takeshi Hoshida
1.96Tbps and 256-Gbaud Dual-carrier Faster than Nyquist Signal Transmission Using Two Narrow-bandwidth Modulators and Single Coherent Receiver. OFC (2023)
Xiaofei Su, Tone Ye, Ke Zhang, Chengwu Yang, Hisao Nakashima, Takeshi Hoshida, Zhenning Tao
Distortion Analysis and Equivalent Multiplicative and Additive Noise Model for High-Speed DAC and ADC. OFC (2023)
Ke Zhang, Xiaofei Su, Hisao Nakashima, Takeshi Hoshida, Zhenning Tao
Calibration of High-Speed Time-Interleaving DAC. OFC (2023)
Zhenning Tao, Ke Zhang, Chengwu Yang, Xiaofei Su, Tong Ye, Hisao Nakashima, Takeshi Hoshida
How to Connect Device Nonlinear Specification and System Nonlinear Penalty. OFC (2022)
Olga Vassilieva, Inwoong Kim, Hiroyuki Irie, Yohei Koganei, Hisao Nakashima, Yuichi Akiyama, Takeshi Hoshida, Paparao Palacharla
Probabilistic vs. Geometric Constellation Shaping in Commercial Applications. OFC (2022)
Ke Zhang, Zhenning Tao, Chengwu Yang, Hisao Nakashima, Takeshi Hoshida
Nonlinear Distortion Identification for Coherent Optical Communication. OECC/PSC (2022)
Chengwu Yang, Tong Ye, Ke Zhang, Zhenning Tao, Hisao Nakashima, Takeshi Hoshida
A Simple and Accurate Method to Estimate the Nonlinear Performance of VCSEL IM-DD System. OFC (2022)
Chengwu Yang, Tong Ye, Ke Zhang, Zhenning Tao, Hisao Nakashima, Takeshi Hoshida
A Sensitive Method for Estimating the Linear Length of a System. OECC/PSC (2022)
Guoxiu Huang, Hisao Nakashima, Takeshi Hoshida
Faster than Nyquist PDM-16QAM Modulation with Low Resolution and Low Speed DAC. OECC/PSC (2022)
Xiaofei Su, Ke Zhang, Tong Ye, Zhenning Tao, Hisao Nakashima, Takeshi Hoshida
The Interaction Between Pilot Based Linear Equalizer and Device Nonlinearity in Optical Coherent Communication. ECOC (2021)
Yangyang Fan, Zhenning Tao, Hisao Nakashima, Takeshi Hoshida
In-field Calibration of Phase Response of Optical Transmitter Using Built-in Monitor Photodiode. OFC (2021)
Zhenning Tao, Yangyang Fan, Tong Ye, Xiaofei Su, Hisao Nakashima, Takeshi Hoshida
Characterization, Modelling and Measurement of Device Imperfections in Advanced Coherent Transceivers. ECOC (2021)
Jingnan Li, Yangyang Fan, Zhenning Tao, Hisao Nakashima, Takeshi Hoshida
Polarization Change Monitor Based on Geometrical Analysis in Stokes Space. ECOC (2021)
Jingnan Li, Yangyang Fan, Zhenning Tao, Tong Ye, Hiroyuki Irie, Hisao Nakashima, Kousuke Komaki, Takeshi Hoshida
A Method to Separate the Penalties Caused by Various Nonlinear Signal-Pump Impairments in Raman Amplified System. OFC (2020)
Guoxiu Huang, Hisao Nakashima, Yuichi Akiyama, Takeshi Hoshida
Up to 115GBaud Faster Than Nyquist PDM-64QAM Based on Tomlinson-Harashima Precoding with Single DAC. ECOC (2020)
Jingnan Li, Yangyang Fan, Zhenning Tao, Hisao Nakashima, Takeshi Hoshida
Side Effect of Normal Vector Recovery based Polarization Demultiplexing in Stokes Space and the Countermeasure. ECOC (2020)
Takeshi Hoshida, Takahito Tanimura, Shoichiro Oda, Setsuo Yoshida, Hisao Nakashima, Guoxiu Huang, Zhenning Tao
Advanced DSP for Monitoring and Mitigation in Optical Transport Networks. OFC (2020)
Yohei Koganei, Kiichi Sugitani, Hisao Nakashima, Takeshi Hoshida
) Implementation Complexity. OFC (2019)
Kiichi Sugitani, Yohei Koganei, Tomofumi Oyama, Hisao Nakashima
Partial Multilevel Coding with Probabilistic Shaping for Low-power Optical Transmission. OECC/PSC (2019)
Yanhui Qi, Tong Ye, Yangyang Fan, Zhenning Tao, Guoxiu Huang, Hisao Nakashima, Takeshi Hoshida
Polarization Change Monitor Based on Jointly Applied Constant Modulus Algorithm and Carrier Phase Recovery in Coherent Receiver. OECC/PSC (2019)
Tong Ye, Xiaofei Su, Ke Zhang, Zhenning Tao, Guoxiu Huang, Hisao Nakashima, Takeshi Hoshida
A Polarization Change Monitor by Eigenvalue Analysis in Coherent Receiver. OFC (2019)
Yangyang Fan, Yufeng Jiang, Junpeng Liang, Zhenning Tao, Hisao Nakashima, Takeshi Hoshida
Transceiver IQ imperfection Monitor by Digital Signal Processing in Coherent Receiver. OECC/PSC (2019)
Tomofumi Oyama, Guoxiu Huang, Hisao Nakashima, Yoshitaka Nomura, Tomoo Takahara, Takeshi Hoshida
Low-Complexity, Low-PAPR Polarization-Time Code for PDL Mitigation. OFC (2019)
Guoxiu Huang, Yuichi Akiyama, Tomohiro Yamauchi, Shoichiro Oda, Tomofumi Oyama, Hisao Nakashima, Takeshi Hoshida
Efficient Polarization Dependent Loss Monitoring and Compensation in Coherent Transmission System. ECOC (2018)
Tomofumi Oyama, Hisao Nakashima, Yoshitaka Nomura, Guoxiu Huang, Takahito Tanimura, Takeshi Hoshida
PDL Mitigation by Polarization-Time Codes with Simple Decoding and Pilot-Aided Demodulation. ECOC (2018)
Yohei Koganei, Tomofumi Oyama, Kiichi Sugitani, Hisao Nakashima, Takeshi Hoshida
Multilevel Coding with Spatially-Coupled Codes for beyond 400Gbps Optical Transmission. OFC (2018)
Tong Ye, Yanhui Qi, Hao Chen, Zhenning Tao, Tomofumi Oyama, Hisao Nakashima, Takeshi Hoshida, Haowen Shu, Xingjun Wang
A Simple, Robust Two-Tone Method to Measure the Dynamic Nonlinear Characteristics of Phase Shifter in Silicon Mach-Zehnder Modulator. OFC (2018)
Yangyang Fan, Xiaofei Su, Hao Chen, Junpeng Liang, Zhenning Tao, Hisao Nakashima, Takeshi Hoshlda
Experimental Verification of IQ Imbalance Monitor for High-Order Modulated Transceivers. ECOC (2018)
Hisao Nakashima, Tomofumi Oyama, Chihiro Ohshima, Yuichi Akiyama, Zhenning Tao, Takeshi Hoshida
Digital nonlinear compensation technologies in coherent optical communication systems. OFC (2017)
Seiji Okamoto, Kazushige Yonenaga, Kengo Horikoshi, Mitsuteru Yoshida, Yutaka Miyamoto, Masahito Tomizawa, Takeshi Okamoto, Hidemi Noguchi, Jun-ichi Abe, Junichiro Matsui, Hisao Nakashima, Yuichi Akiyama, Takeshi Hoshida, Hiroshi Onaka, Kenya Sugihara, Soichiro Kametani, Kazuo Kubo, Takashi Sugihara
400Gbit/s/ch Field Demonstration of Modulation Format Adaptation Based on Pilot-Aided OSNR Estimation Using Real-Time DSP. IEICE Trans. Commun. (10) (2017)
Olga Vassilieva, Inwoong Kim, Tomofumi Oyama, Shoichiro Oda, Hisao Nakashima, Takeshi Hoshida, Tadashi Ikeuchi
Reach extension with 32- and 64 GBaud single carrier vs. multi-carrier signals. OFC (2017)
Guoxiu Huang, Shoichiro Oda, Yuichi Akiyama, Hiroyuki Irie, Setsuo Yoshida, Hisao Nakashima, Takeshi Hoshida
Polarization Dependent Loss Monitor with Visualization on Poincaré Sphere in Digital Coherent System. ECOC (2017)
Yi Ge, Shoichiro Oda, Ying Zhao, Guoxiu Huang, Setsuo Yoshida, Hisao Nakashima, Yuichi Akiyama, Yoshio Hirose, Zhenning Tao, Takeshi Hoshida
Autonomous and Real-time Controlled Transceiver Prototype with FSK Supervisory Signal and Performance Monitoring. ECOC (2017)
Hao Chen, Xiaofei Su, Zhenning Tao, Tomofumi Oyama, Hisao Nakashima, Takeshi Hoshida, Kazutoshi Kato
An Accurate and Robust In-phase/Quadrature Skew Measurement for Coherent Optical Transmitter by Image Spectrum Analyzing. ECOC (2017)
Tomohiro Yamauchi, Olga Vassilieva, Shoichiro Oda, Inwoong Kim, Chihiro Ohshima, Hisao Nakashima, Takeshi Hoshida, Yasuhiko Aoki, Motoyoshi Sekiya, Yuichi Akiyama, Jens C. Rasmussen
Nonlinear mitigation technique using subcarrier power pre-emphasis and digital nonlinear compensation in superchannel transmission. ECOC (2015)
Tomofumi Oyama, Hisao Nakashima, Takeshi Hoshida, Takahito Tanimura, Yuichi Akiyama, Zhenning Tao, Jens C. Rasmussen
Complexity reduction of perturbation-based nonlinear compensator by sub-band processing. OFC (2015)
Takahito Tanimura, Tomofumi Oyama, Hisao Nakashima, Jens C. Rasmussen
PDL-tolerant signal generation by digital spectrum slicing and polarization control. OFC (2015)
Hisao Nakashima, Takahito Tanimura, Tomofumi Oyama, Yuichi Akiyama, Takeshi Hoshida, Jens C. Rasmussen
Experimental investigation on nonlinear tolerance of subcarrier multiplexed signals with spectrum optimization. ECOC (2015)
Shoichiro Oda, Takahito Tanimura, Takeshi Hoshida, Yuichi Akiyama, Hisao Nakashima, Kyosuke Sone, Zhenning Tao, Jens C. Rasmussen
Three Benefits Brought by Perturbation Back-Propagation Algorithm in 224Gb/s DP-16QAM Transmission. IEICE Trans. Commun. (7) (2014)
Takeshi Hoshida, Takahito Tanimura, Tomofumi Oyama, Shoichiro Oda, Hisao Nakashima, Yangyang Fan, Liang Dou, Zhenning Tao, Jens C. Rasmussen
Digital nonlinear compensation for spectrally efficient superchannel transmission at 400Gbit/s and beyond. ECOC (2014)
Takahito Tanimura, Yohei Koganei, Hisao Nakashima, Takeshi Hoshida, Jens C. Rasmussen
Soft decision forward error correction over nonlinear transmission of 1-Tb/s superchannel. ECOC (2014)
Tomofumi Oyama, Takahito Tanimura, Hisao Nakashima, Takeshi Hoshida, Zhenning Tao, Jens C. Rasmussen
Impact of fiber nonlinearity on duobinary-QPSK in super-Nyquist WDM transmission. ECOC (2014)
Tomofumi Oyama, Hisao Nakashima, Shoichiro Oda, Tomohiro Yamauchi, Zhenning Tao, Takeshi Hoshida, Jens C. Rasmussen
Robust and efficient receiver-side compensation method for intra-channel nonlinear effects. OFC (2014)
Tomofumi Oyama, Takeshi Hoshida, Hisao Nakashima, Chihiro Ohshima, Zhenning Tao, Jens C. Rasmussen
Impact of pulse shaping and transceiver electrical bandwidths on nonlinear compensated transmission. OFC/NFOEC (2013)
Takeshi Hoshida, Liang Dou, Weizhen Yan, Lei Li, Zhenning Tao, Shoichiro Oda, Hisao Nakashima, Chihiro Ohshima, Tomofumi Oyama, Jens C. Rasmussen
Advanced and feasible signal processing algorithm for nonlinear mitigation. OFC/NFOEC (2013)
Masahiro Kurata, Seishiro Tsuruho, Takafumi Isogawa, Hisao Nakashima
Methods for Achieving Integrated Operation in a High-Performance Optical Loop Intercomputer Communications System. FJCC (1986)