Analysis of Polarization Dependent Loss Impact on Optically Amplified Multi-Span Dual-Polarization Systems. - Liang Dou; Zhenning Tao; Takeshi Hoshida; Jens C. Rasmussen (ICC, 2011)

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)

Evaluation of FSK light labels superimposed on 112 Gbps DP-QPSK signal with real-time coherent receiver and optical filter based decoder for light path tracing. - Goji Nakagawa; Shoichiro Oda; Kyosuke Sone; Yasuhiko Aoki; Kazuo Hironishi; Takahito Tanimura; Takeshi Hoshida; 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)

Experimental investigation of the statistics of the interplay between nonlinear and PDL effects in polarization multiplexed systems. - Olga Vassilieva; Shoichiro Oda; Takeshi Hoshida; Jens C. Rasmussen; Motoyoshi Sekiya (OFC/NFOEC, 2013)

Digital clock recovery algorithm for Nyquist signal. - Meng Yan 005; Zhenning Tao; Liang Dou; Lei Li 041; Ying Zhao; Takeshi Hoshida; Jens C. Rasmussen (OFC/NFOEC, 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)

Demonstration of integrated optical path monitoring sub-system in CDCG-ROADM network. - Goji Nakagawa; Shoichiro Oda; Kyosuke Sone; Yasuhiko Aoki; Takeshi Hoshida; 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)

Soft decision forward error correction over nonlinear transmission of 1-Tb/s superchannel. - Takahito Tanimura; Yohei Koganei; Hisao Nakashima; Takeshi Hoshida; Jens C. Rasmussen (ECOC, 2014)

Systematic analysis of intra-superchannel nonlinear crosstalk in flexible grid networks. - Olga Vassilieva; Tomohiro Yamauchi; Shoichiro Oda; Inwoong Kim; Takeshi Hoshida; Yasuhiko Aoki; Jens C. Rasmussen; Motoyoshi Sekiya (ECOC, 2014)

Nonlinear noise waveform estimation for arbitrary signal based on Nyquist nonlinear model. - Ying Zhao; Liang Dou; Zhenning Tao; Yueqiao Xu; Takeshi Hoshida; Jens C. Rasmussen (ECOC, 2014)

Next generation photonic node architecture using software-defined universal transceivers. - Yasuhiko Aoki; Xi Wang 001; Goji Nakagawa; Shoichiro Oda; Kyosuke Sone; Takahito Tanimura; Takeshi Hoshida; Paparao Palacharla; Motoyoshi Sekiya; Jens C. Rasmussen (OFC, 2014)

A high performance nonlinear compensation algorithm with reduced complexity based on XPM model. - Yangyang Fan; Liang Dou; Zhenning Tao; Takeshi Hoshida; Jens C. Rasmussen (OFC, 2014)

Crosstalk analysis of FSK light label on 112 Gbps DP-QPSK signal in CNCG ROADM network. - Goji Nakagawa; Shoichiro Oda; Kyosuke Sone; Yasuhiko Aoki; Kazuo Hironishi; Takahito Tanimura; Takeshi Hoshida; Jens C. Rasmussen (OFC, 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)

Three Benefits Brought by Perturbation Back-Propagation Algorithm in 224Gb/s DP-16QAM Transmission. - Shoichiro Oda; Takahito Tanimura; Takeshi Hoshida; Yuichi Akiyama; Hisao Nakashima; Kyosuke Sone; Zhenning Tao; Jens C. Rasmussen (IEICE Trans. Commun., 2014)

Demonstration of real-time FSK light labeling using DAC-based transmitter for 400G superchannel. - Goji Nakagawa; Shoichiro Oda; Setsuo Yoshida; Guoxiu Huang; Yasuhiko Aoki; Takeshi Hoshida; Taku Saito; Taketo Endo; Kousuke Komaki; Osamu Takeuchi; Hiroshi Onaka; Jens C. Rasmussen (ECOC, 2015)

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)

Flexible grid network optimization for maximum spectral efficiency and reach. - Olga Vassilieva; Tomohiro Yamauchi; Shoichiro Oda; Inwoong Kim; Takeshi Hoshida; Yasuhiko Aoki; Jens C. Rasmussen; Motoyoshi Sekiya (ECOC, 2015)

Nonlinear mitigation technique using subcarrier power pre-emphasis and digital nonlinear compensation in superchannel transmission. - Tomohiro Yamauchi; Olga Vassilieva; Shoichiro Oda; Inwoong Kim; Chihiro Ohshima; Hisao Nakashima; Takeshi Hoshida; Yasuhiko Aoki; Motoyoshi Sekiya; Yuichi Akiyama; Jens C. Rasmussen (ECOC, 2015)

Differential pilots aided in-band OSNR monitor with large nonlinear tolerance. - Liang Dou; Zhenning Tao; Ying Zhao; Shoichiro Oda; Yasuhiko Aoki; Takeshi Hoshida; Jens C. Rasmussen (OFC, 2015)

Advanced digital nonlinear distortion compensation. - Liang Dou; Ying Zhao; Zhenning Tao; Yangyang Fan; Takeshi Hoshida; Jens C. Rasmussen (OFC, 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)

High-accuracy gain-isolated volterra nonlinear behavior model for wideband driver in optical coherent transmitter. - Hao Chen 058; Zhenning Tao; Liang Dou; Ying Zhao; Yangyang Fan; Takeshi Hoshida; Jens C. Rasmussen (OFC, 2016)

420Gbit/s DP-64QAM Nyquist-FDM single-carrier system. - Liang Dou; Xiaofei Su; Yangyang Fan; Hao Chen 058; Ying Zhao; Zhenning Tao; Takahito Tanimura; Takeshi Hoshida; Jens C. Rasmussen (OFC, 2016)

An accurate nonlinear noise insensitive OSNR monitor. - Liang Dou; Tomohiro Yamauchi; Xiaofei Su; Zhenning Tao; Shoichiro Oda; Yasuhiko Aoki; Takeshi Hoshida; Jens C. Rasmussen (OFC, 2016)

In-line optical signal multiplexing by polarization-insensitive fiber frequency conversion. - Tomoyuki Kato; Takahito Tanimura; Takeshi Hoshida; Thomas Richter 004; Robert Elschner; Carsten Schmidt-Langhorst; Colja Schubert; Shigeki Watanabe (OFC, 2016)

Latency and bandwidth programmable transceivers with power arbitration among multi-tenanted signals. - Takahito Tanimura; Liang Dou; Xiaofei Su; Takeshi Hoshida; Yasuhiko Aoki; Zhenning Tao; Jens C. Rasmussen; Makoto Suzuki; Hiroyuki Morikawa (OFC, 2016)

SC-LDPC Code With Nonuniform Degree Distribution Optimized by Using Genetic Algorithm. - Yohei Koganei; Masanori Yofune; Cong Li; Takeshi Hoshida; Yasuharu Amezawa (IEEE Commun. Lett., 2016)

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)

Autonomous and Real-time Controlled Transceiver Prototype with FSK Supervisory Signal and Performance Monitoring. - Yi Ge; Shoichiro Oda; Ying Zhao; Guoxiu Huang; Setsuo Yoshida; Hisao Nakashima; Yuichi Akiyama; Yoshio Hirose; Zhenning Tao; Takeshi Hoshida (ECOC, 2017)

Polarization Dependent Loss Monitor with Visualization on Poincaré Sphere in Digital Coherent System. - Guoxiu Huang; Shoichiro Oda; Yuichi Akiyama; Hiroyuki Irie; Setsuo Yoshida; Hisao Nakashima; Takeshi Hoshida (ECOC, 2017)

Development of Evaluation Platform of AMCC Superimposition on CPRI Signal Transmission for Mobile Fronthaul Network. - Goji Nakagawa; Kyosuke Sone; Shoichiro Oda; Setsuo Yoshida; Yoshio Hirose; Motoyuki Takizawa; Takeshi Hoshida (ECOC, 2017)

Network Capacity Improvement by Quality of Transmission Estimator with Learning Process. - Shoichiro Oda; Martin Bouda; Olga Vassilieva; Yoshio Hirose; Takeshi Hoshida; Tadashi Ikeuchi (ECOC, 2017)

Fiber Nonlinearity Mitigation in 800-km Transmission of a 1.6-Tb/s Superchannel Using Waveband-Shift-Free Optical Phase Conjugation. - Carsten Schmidt-Langhorst; Isaac Sackey; Robert Elschner; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Takeshi Hoshida; Colja Schubert (ECOC, 2017)

Remote Management and Control of WDM-PON System for Fronthaul in Cloud-Radio Access Networks. - Kyosuke Sone; Goji Nakagawa; Shoichiro Oda; Motoyuki Takizawa; Yoshio Hirose; Takeshi Hoshida (ECOC, 2017)

Accurate prediction of quality of transmission with dynamically configurable optical impairment model. - Martin Bouda; Shoichiro Oda; Olga Vassilieva; Masatake Miyabe; Setsuo Yoshida; Toru Katagiri; Yasuhiko Aoki; Takeshi Hoshida; Tadashi Ikeuchi (OFC, 2017)

Calibration of in-phase/quadrature amplitude and phase response imbalance for coherent receiver. - Cheng Ju; Zhenning Tao; Yangyang Fan; Ying Zhao; Hao Chen 058; Xiaofei Su; Takeshi Hoshida (OFC, 2017)

Continuously tunable optical frequency shift of 1.6-Tb/s superchannel up to THz-range by polarization switched frequency conversion. - Tomoyuki Kato; Shigeki Watanabe; Takahito Tanimura; Thomas Richter 004; Robert Elschner; Carsten Schmidt-Langhorst; Colja Schubert; Takeshi Hoshida (OFC, 2017)

Compact and low cost superimposition of AMCC with magneto-optic VOA. - Goji Nakagawa; Kyosuke Sone; Setsuo Yoshida; Shoichiro Oda; Motoyuki Takizawa; Tomoo Takahara; Yoshio Hirose; Takeshi Hoshida (OFC, 2017)

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

Novel wavelength-shift-free optical phase conjugator used for fiber nonlinearity mitigation in 200-Gb/s PDM-16QAM transmission. - Isaac Sackey; Robert Elschner; Carsten Schmidt-Langhorst; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Takeshi Hoshida; Colja Schubert (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)

Pilot based cross phase modulation power estimation. - Ying Zhao; Zhenning Tao; Shoichiro Oda; Yasuhiko Aoki; Takeshi Hoshida (OFC, 2017)

400Gbit/s/ch Field Demonstration of Modulation Format Adaptation Based on Pilot-Aided OSNR Estimation Using Real-Time DSP. - 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; et al. (IEICE Trans. Commun., 2017)

Experimental Verification of IQ Imbalance Monitor for High-Order Modulated Transceivers. - Yangyang Fan; Xiaofei Su; Hao Chen 058; Junpeng Liang; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida (ECOC, 2018)

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)

Any-to-Any Signal Frequency Shifting Across Entire C-Band Using Continuously Tuneable Optical Frequency Shifter. - Tomoyuki Kato; Shigeki Watanabe; Takahito Tanimura; Carsten Schmidt-Langhorst; Isaac Sackey; Robert Elschner; Colja Schubert; Takeshi Hoshida (ECOC, 2018)

Tone-Assisted Simultaneous Activation Protocol for Multiple ONUs in Point-to-point WDM Mobile Fronthaul. - Goji Nakagawa; Kyosuke Sone; Shoichiro Oda; Setsuo Yoshida; Yoshio Hirose; Takeshi Hoshida (ECOC, 2018)

Innovative Optical Networking by Optical Performance Monitoring and Learning Process. - Shoichiro Oda; Martin Bouda; Yi Ge; Setsuo Yoshida; Takahito Tanimura; Yuichi Akiyama; Yoshio Hirose; Zhenning Tao; Tadashi Ikeuchi; 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)

Deep Neural Network Based Optical Monitor Providing Self-Confidence as Auxiliary Output. - Takahito Tanimura; Tomoyuki Kato; Shigeki Watanabe; Takeshi Hoshida (ECOC, 2018)

Wavelength Adjustment of Upstream Signal using AMCC with Power Monitoring for WDM-PON in 5G Mobile Era. - Kazuaki Honda; Hirotaka Nakamura; Kazutaka Hara; Kyosuke Sone; Goji Nakagawa; Yoshio Hirose; Takeshi Hoshida; Jun Terada; Akihiro Otaka (OFC, 2018)

Fiber-Optic Frequency Shifting of THz-Range WDM Signal Using Orthogonal Pump-Signal Polarization Configuration. - Tomoyuki Kato; Shigeki Watanabe; Takahito Tanimura; Robert Elschner; Carsten Schmidt-Langhorst; Colja Schubert; Takeshi Hoshida (OFC, 2018)

Spectrally Efficient and Highly Resilient Grouped Routing Network Enhanced with Optical Performance Monitoring. - Keisuke Kayano; Hiroshi Saito; Yojiro Mori; Hiroshi Hasegawa; Ken-ichi Sato; Shoichiro Oda; Setsuo Yoshida; Takeshi Hoshida (OFC, 2018)

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

An Accurate and Robust PDL Monitor by Digital Signal Processing in Coherent Receiver. - Huihui Li; Guoxiu Huang; Zhenning Tao; Hao Chen 058; Shoichiro Oda; Yuichi Akiyama; Tomohiro Yamauchi; Takeshi Hoshida (OFC, 2018)

Multi-Vendor Interoperation of SFP+ Transceivers for CPRI Signal Transmission with Superimposed AMCC for Mobile Fronthaul. - Goji Nakagawa; Kyosuke Sone; Setsuo Yoshida; Shoichiro Oda; Yoshio Hirose; Takeshi Hoshida (OFC, 2018)

Single-Wavelength, Single-Photodiode per Polarization 276 Gb/s PDM 8-QAM over 100 km of SSMF. - Rafael Puerta; Tomohiro Yamauchi; Takahito Tanimura; Yuichi Akiyama; Tomoo Takahara; Idelfonso Tafur Monroy; Takeshi Hoshida (OFC, 2018)

Distributed Aggregation and Reception of a 400-Gb/s Net Rate Superchannel in a Single-Photodiode 110-GHz Kramers-Kronig Receiver. - Isaac Sackey; Carsten Schmidt-Langhorst; Robert Emmerich; Robert Elschner; Tomoyuki Kato; Takahito Tanimura; Shigeki Watanabe; Takeshi Hoshida; Colja Schubert (OFC, 2018)

Demonstration of Simultaneous Multiple ONUs Activation in WDM-PON System for 5G Fronthaul. - Kyosuke Sone; Goji Nakagawa; Yoshio Hirose; Takeshi Hoshida (OFC, 2018)

An Accurate Algorithm to Quantitatively Identify the Performance Degradation Caused by Linear Crosstalk. - Xiaofei Su; Yangyang Fan; Ke Zhang; Hao Chen 058; Zhenning Tao; Shoichiro Oda; Takeshi Hoshida (OFC, 2018)

Demonstration of Automatic Connection Pair Discovery and Path Setting in Filter-less Point-to-Point WDM Systems. - Yutaka Takita; Masatake Miyabe; Kazuyuki Tajima; Hiroshi Tomonaga; Takeshi Hoshida (OFC, 2018)

Data-analytics-based Optical Performance Monitoring Technique for Optical Transport Networks. - Takahito Tanimura; Takeshi Hoshida; Tomoyuki Kato; Shigeki Watanabe; Hiroyuki Morikawa (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)

Accurate Prediction of Quality of Transmission Based on a Dynamically Configurable Optical Impairment Model. - Martin Bouda; Shoichiro Oda; Olga Vassilieva; Masatake Miyabe; Setsuo Yoshida; Toru Katagiri; Yasuhiko Aoki; Takeshi Hoshida; Tadashi Ikeuchi (JOCN, 2018)

Simple Learning Method to Guarantee Operational Range of Optical Monitors. - Takahito Tanimura; Takeshi Hoshida; Tomoyuki Kato; Shigeki Watanabe; Hiroyuki Morikawa (JOCN, 2018)

Demonstration of Continuous Improvement in Open Optical Network Design by QoT Prediction using Machine Learning. - Martin Bouda; Shoichiro Oda; Yuichi Akiyama; Denis Paunovic; Takeshi Hoshida; Paparao Palacharla; Tadashi Ikeuchi (OFC, 2019)

Wavelength-Shifted Protection for WDM-PON with AMCC Scheme for 5G Mobile Fronthaul. - Kazuaki Honda; Hirotaka Nakamura; Kyosuke Sone; Goji Nakagawa; Yoshio Hirose; Takeshi Hoshida; Jun Terada (OFC, 2019)

Optimum Bit-Level Distribution Matching with at Most O(N3) Implementation Complexity. - Yohei Koganei; Kiichi Sugitani; Hisao Nakashima; Takeshi Hoshida (OFC, 2019)

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

A Polarization Change Monitor by Eigenvalue Analysis in Coherent Receiver. - Tong Ye; Xiaofei Su; Ke Zhang; Zhenning Tao; Guoxiu Huang; Hisao Nakashima; Takeshi Hoshida (OFC, 2019)

Fiber Nonlinear Noise-to-Signal Ratio Estimation by Machine Learning. - Ke Zhang; Yangyang Fan; Tong Ye; Zhenning Tao; Shoichiro Oda; Takahito Tanimura; Yuichi Akiyama; Takeshi Hoshida (OFC, 2019)

A Demultiplexer Immune from Fabrication-Error Impairments as an Enabler of Compact High-Channel-Count (> 64 ch) Dense WDM Systems on Low-End Si PIC Platforms. - Tomoyuki Akiyama; Shoichiro Oda; Seok-Hwan Jeong; Yasuhiro Nakasha; Yu Tanaka; Takeshi Hoshida (OECC/PSC, 2019)

Transceiver IQ imperfection Monitor by Digital Signal Processing in Coherent Receiver. - Yangyang Fan; Yufeng Jiang; Junpeng Liang; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida (OECC/PSC, 2019)

Flexible Management of WDM-PON Using AMCC for 5G Radio Access Networks. - Kazuaki Honda; Hirotaka Nakamura; Kazutaka Hara; Kyosuke Sone; Goji Nakagawa; Yoshio Hirose; Takeshi Hoshida; Jun Terada (OECC/PSC, 2019)

Polarization Change Monitor Based on Jointly Applied Constant Modulus Algorithm and Carrier Phase Recovery in Coherent Receiver. - Yanhui Qi; Tong Ye; Yangyang Fan; Zhenning Tao; Guoxiu Huang; Hisao Nakashima; Takeshi Hoshida (OECC/PSC, 2019)

Investigation on Maximum Transmission Reach in Wavelength Converted Systems. - Tomohiro Yamauchi; Tomoyuki Kato; Goji Nakagawa; Shigeki Watanabe; Yuichi Akiyama; Takeshi Hoshida (OECC/PSC, 2019)

Convolutional Neural Network-Based Optical Performance Monitoring for Optical Transport Networks. - Takahito Tanimura; Takeshi Hoshida; Tomoyuki Kato; Shigeki Watanabe; Hiroyuki Morikawa (JOCN, 2019)

Up to 115GBaud Faster Than Nyquist PDM-64QAM Based on Tomlinson-Harashima Precoding with Single DAC. - Guoxiu Huang; Hisao Nakashima; Yuichi Akiyama; Takeshi Hoshida (ECOC, 2020)

Side Effect of Normal Vector Recovery based Polarization Demultiplexing in Stokes Space and the Countermeasure. - Jingnan Li; Yangyang Fan; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida (ECOC, 2020)

Advanced Data-Analytics-Based Fiber-Longitudinal Monitoring for Optical Transport Networks. - Takahito Tanimura; Setsuo Yoshida; Shoichiro Oda; Kazuyuki Tajima; Takeshi Hoshida (ECOC, 2020)

Single-Pixel IQ Monitor via Computational Coherent Reception with Widely Linear Phase Retrieval. - Yuki Yoshida; Takahito Tanimura; Setsuo Yoshida; Takeshi Hoshida; Naokatsu Yamamoto (ECOC, 2020)

Advanced DSP for Monitoring and Mitigation in Optical Transport Networks. - Takeshi Hoshida; Takahito Tanimura; Shoichiro Oda; Setsuo Yoshida; Hisao Nakashima; Guoxiu Huang; Zhenning Tao (OFC, 2020)

Automatic Resource Mapping using Functional Block Based Disaggregation Model for ROADM Networks. - Kiyo Ishii; Sugang Xu; Noboru Yoshikane; Atsuko Takefusa; Shigeyuki Yanagimachi; Takeshi Hoshida; Kohei Shiomoto; Tomohiro Kudoh; Takehiro Tsuritani; Yoshinari Awaji; Shu Namiki (OFC, 2020)

First Demonstration of Automated Updates of Disaggregate Blades in Multi-Domain/Layer Optical Path Network. - Kiyo Ishii; Sugang Xu; Noboru Yoshikane; Atsuko Takefusa; Shigeyuki Yanagimachi; Takeshi Hoshida; Kohei Shiomoto; Tomohiro Kudoh; Takehiro Tsuritani; Yoshinari Awaji; Shu Namiki (OFC, 2020)

A Method to Separate the Penalties Caused by Various Nonlinear Signal-Pump Impairments in Raman Amplified System. - Jingnan Li; Yangyang Fan; Zhenning Tao; Tong Ye; Hiroyuki Irie; Hisao Nakashima; Kousuke Komaki; Takeshi Hoshida (OFC, 2020)

High-Speed-Operation of Compact All-Silicon Segmented Mach-Zehnder Modulator Integrated with Passive RC Equalizer for Optical DAC Transmitter. - Yohei Sobu; Shinsuke Tanaka; Yu Tanaka; Yuichi Akiyama; Takeshi Hoshida (OFC, 2020)

Transmission-Quality-Aware Online Network Design and Provisioning Enabled by Optical Performance Monitoring. - Keisuke Kayano; Yojiro Mori; Hiroshi Hasegawa; Ken-ichi Sato; Shoichiro Oda; Setsuo Yoshida; Takeshi Hoshida (IEICE Trans. Commun., 2020)

Temperature-Tolerant Crosstalk-Free WDM Demultiplexing Using Controller-Integrated Cascaded AMZ Triplet (CAT) on Si Nano-Waveguide PIC Platform. - Tomoyuki Akiyama; Motoyuki Nishizawa; Akio Sugama; Yasuhiro Nakasha; Shinsuke Tanaka; Yu Tanaka; Takeshi Hoshida (ECOC, 2021)

Polarization Change Monitor Based on Geometrical Analysis in Stokes Space. - Jingnan Li; Yangyang Fan; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida (ECOC, 2021)

The Interaction Between Pilot Based Linear Equalizer and Device Nonlinearity in Optical Coherent Communication. - Xiaofei Su; Ke Zhang; Tong Ye; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida (ECOC, 2021)

Characterization, Modelling and Measurement of Device Imperfections in Advanced Coherent Transceivers. - Zhenning Tao; Yangyang Fan; Tong Ye; Xiaofei Su; Hisao Nakashima; Takeshi Hoshida (ECOC, 2021)

Demonstration of Crosstalk-Free WDM Demultiplexing on Si Nanowire PIC Controlled by Si CMOS ASIC. - Tomoyuki Akiyama; Motoyuki Nishizawa; Akio Sugama; Yasuhiro Nakasha; Shinsuke Tanaka; Yu Tanaka; Shoichiro Oda; Takeshi Hoshida (OFC, 2021)

In-field Calibration of Phase Response of Optical Transmitter Using Built-in Monitor Photodiode. - Yangyang Fan; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida (OFC, 2021)

Whole Band Wavelength Conversion for Wideband Transmission. - Tomoyuki Kato; Shigeki Watanabe; Tomohiro Yamauchi; Goji Nakagawa; Hidenobu Muranaka; Yu Tanaka; Yuichi Akiyama; Takeshi Hoshida (OFC, 2021)

Simultaneous Monitoring of Frequency-dependent IQ Imbalances in a Dual-polarization IQ Modulator by using a Single Photodetector: A Phase Retrieval Approach. - Yuki Yoshida; Setsuo Yoshida; Shoichiro Oda; Takeshi Hoshida; Naokatsu Yamamoto (OFC, 2021)

Concept and implementation study of advanced DSP-based fiber-longitudinal optical power profile monitoring toward optical network tomography [Invited]. - Takahito Tanimura; Setsuo Yoshida; Kazuyuki Tajima; Shoichiro Oda; Takeshi Hoshida (JOCN, 2021)

First Demonstration of Crosstalk-Free (< -38.5 dB) 32-ch DWDM Demultiplexer on Standard Si PIC Platform. - Tomoyuki Akiyama; Motoyuki Nishizawa; Akio Sugama; Yasuhiro Nakasha; Shinsuke Tanaka; Yu Tanaka; Takeshi Hoshida (OFC, 2022)

Location-resolved PDL Monitoring with Rx-side Digital Signal Processing in Multi-span Optical Transmission System. - Motohiko Eto; Kazuyuki Tajima; Setsuo Yoshida; Shoichiro Oda; Takeshi Hoshida (OFC, 2022)

Highly power-efficient (2 pJ/bit), 128Gbps 16QAM signal generation of coherent optical DAC transmitter using 28-nm CMOS driver and all-silicon segmented modulator. - Yohei Sobu; Guoxiu Huang; Toshihiko Mori; Yukito Tsunoda; Takuji Yamamoto; Shinsuke Tanaka; Takeshi Hoshida (OFC, 2022)

How to Connect Device Nonlinear Specification and System Nonlinear Penalty. - Zhenning Tao; Ke Zhang; Chengwu Yang; Xiaofei Su; Tong Ye; Hisao Nakashima; Takeshi Hoshida (OFC, 2022)

Probabilistic vs. Geometric Constellation Shaping in Commercial Applications. - Olga Vassilieva; Inwoong Kim; Hiroyuki Irie; Yohei Koganei; Hisao Nakashima; Yuichi Akiyama; Takeshi Hoshida; Paparao Palacharla (OFC, 2022)

A Simple and Accurate Method to Estimate the Nonlinear Performance of VCSEL IM-DD System. - Chengwu Yang; Tong Ye; Ke Zhang; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida (OFC, 2022)

Faster than Nyquist PDM-16QAM Modulation with Low Resolution and Low Speed DAC. - Guoxiu Huang; Hisao Nakashima; Takeshi Hoshida (OECC/PSC, 2022)

WDM Transmission in S-Band Using PPLN-Based Wavelength Converters and 400-Gb/s C-Band Real-Time Transceivers. - Tomoyuki Kato; Hidenobu Muranaka; Yu Tanaka; Yuichi Akiyama; Takeshi Hoshida; Shimpei Shimizu; Takayuki Kobayashi; Takushi Kazama; Takeshi Umeki; Kei Watanabe; Yutaka Miyamoto (OECC/PSC, 2022)

Characterization of Dispersion-Tailored Silicon Strip Waveguide for Wideband Wavelength Conversion. - Hidenobu Muranaka; Tomoyuki Kato; Shun Okada; Tokuharu Kimura; Yu Tanaka; Tsuyoshi Yamamoto; Isaac Sackey; Gregor Ronniger; Carsten Schmidt-Langhorst; Colja Schubert; Takeshi Hoshida (OECC/PSC, 2022)

Implementation of Rx-side DSP-based fiber-longitudinal optical power profile monitoring for optical network tomography. - Kyosuke Sone; Motohiko Eto; Kazuyuki Tajima; Setsuo Yoshida; Ichiro Yokokura; Kenichi Kamada; Shoichiro Oda; Takeshi Hoshida (OECC/PSC, 2022)

A Sensitive Method for Estimating the Linear Length of a System. - Chengwu Yang; Tong Ye; Ke Zhang; Zhenning Tao; Hisao Nakashima; Takeshi Hoshida (OECC/PSC, 2022)

Nonlinear Distortion Identification for Coherent Optical Communication. - Ke Zhang; Zhenning Tao; Chengwu Yang; Hisao Nakashima; Takeshi Hoshida (OECC/PSC, 2022)

Ultrawideband Systems and Networks: Beyond C + L-Band. - Takeshi Hoshida; Vittorio Curri; Lídia Galdino; David T. Neilson; Wladek Forysiak; Johannes K. Fischer; Tomoyuki Kato; Pierluigi Poggiolini (Proc. IEEE, 2022)

1.96Tbps and 256-Gbaud Dual-carrier Faster than Nyquist Signal Transmission Using Two Narrow-bandwidth Modulators and Single Coherent Receiver. - Guoxiu Huang; Hisao Nakashima; Jun Matsui; Yohei Sobu; Shinsuke Tanaka; Takeshi Hoshida (OFC, 2023)

U-Band Transmission of Real-Time 200-Gb/s Signal Co-Propagating with C+L-Band WDM Signal. - Tomoyuki Kato; Hiroyuki Irie; Hidenobu Muranaka; Yu Tanaka; Yuichi Akiyama; Takeshi Hoshida (OFC, 2023)

38.4-Tbps Inline-amplified Transmission Using PPLN-based Optical Parametric Amplifier over 6 THz within L- and U-bands. - Shimpei Shimizu; Takayuki Kobayashi; Akira Kawai; Takushi Kazama; Masanori Nakamura; Koji Enbutsu; Takahiro Kashiwazaki; Masashi Abe; Takeshi Umeki; Yutaka Miyamoto; Tomoyuki Kato; Yu Tanaka; et al. (OFC, 2023)

Optical Network Tomography: Demonstration of Anomaly Loss Monitoring and Fiber-Type Identification. - Ryu Shinzaki; Motohiko Eto; Kazuyuki Tajima; Kyosuke Sone; Setsuo Yoshida; Shoichiro Oda; Inwoong Kim; Olga Vassilieva; Paparao Palacharla; Takeshi Hoshida (OFC, 2023)

Distortion Analysis and Equivalent Multiplicative and Additive Noise Model for High-Speed DAC and ADC. - Xiaofei Su; Tone Ye; Ke Zhang; Chengwu Yang; Hisao Nakashima; Takeshi Hoshida; Zhenning Tao (OFC, 2023)

Calibration of High-Speed Time-Interleaving DAC. - Ke Zhang; Xiaofei Su; Hisao Nakashima; Takeshi Hoshida; Zhenning Tao (OFC, 2023)

Foreword. - Takeshi Hoshida (IEICE Trans. Commun., 2023)

S-Band WDM Transmission Using PPLN-Based Wavelength Converters and 400-Gb/s C-Band Real-Time Transceivers. - Tomoyuki Kato; Hidenobu Muranaka; Yu Tanaka; Yuichi Akiyama; Takeshi Hoshida; Shimpei Shimizu; Takayuki Kobayashi; Takushi Kazama; Takeshi Umeki; Kei Watanabe; Yutaka Miyamoto (IEICE Trans. Commun., 2023)

Design and Characterization of Dispersion-Tailored Silicon Strip Waveguides toward Wideband Wavelength Conversion. - Hidenobu Muranaka; Tomoyuki Kato; Shun Okada; Tokuharu Kimura; Yu Tanaka; Tsuyoshi Yamamoto; Isaac Sackey; Gregor Ronniger; Robert Elschner; Carsten Schmidt-Langhorst; Colja Schubert; Takeshi Hoshida (IEICE Trans. Electron., 2023)

240GBd-16QAM Single-Carrier Coherent Transmission over 120km SSMF for a Bandwidth Limited System with 1sps Speed and Simple DSP. - Guoxiu Huang; Yo Nakamura; Hisao Nakashima; Takeshi Hoshida (OFC, 2024)

U-band WDM Transmission over 90-km Deployed Fiberoptic Cable Leveraged by S+C+L-band WDM Channels. - Tomoyuki Kato; Shohei Beppu; Daiki Soma; Hidenobu Muranaka; Shun Okada; Hiroyuki Irie; Yuta Wakayama; Noboru Yoshikane; Takehiro Tsuritani; Yu Tanaka; Takeshi Hoshida (OFC, 2024)

Nonlinear SNR Estimation based on Power Profile Estimation in Hybrid Raman-EDFA Link. - Inwoong Kim; Kyosuke Sone; Olga Vassilieva; Shoichiro Oda; Paparao Palacharla; Takeshi Hoshida (OFC, 2024)

Modeling and Experimental Verification in S+C+L+U Quadrable-Band WDM Transmission System using C+L-Band Transceivers and Wavelength Converters. - Hidenobu Muranaka; Tomoyuki Kato; Tomohiro Yamauchi; Hiroyuki Irie; Hiroki Ooi; Yu Tanaka; Shimpei Shimizu; Takayuki Kobayashi; Takushi Kazama; Masashi Abe; Takeshi Umeki; Yutaka Miyamoto; et al. (OFC, 2024)

Clock Recovery of a 180 Gbaud Faster-than-Nyquist Signal Enabled by a Novel Adaptive Equalizer-Aided Algorithm. - Yo Nakamura; Guoxiu Huang; Hisao Nakashima; Takeshi Hoshida (OFC, 2024)

Digital Coherent Receiver Based Optical Performance Monitoring Technology and its Application to Photonics Tomography. - Shoichiro Oda; Ryu Shinzaki; Motohiko Eto; Kazuyuki Tajima; Kyosuke Sone; Setsuo Yoshida; Inwoong Kim; Olga Vassilieva; Paparao Palacharla; Takeshi Hoshida (OFC, 2024)

High-speed and low-power optical DAC transmitter using all-silicon lumped segmented modulator directly driven by CMOS inverter driver. - Yohei Sobu; Yukito Tsunoda; Toshihiko Mori; Guoxiu Huang; Takuji Yamamoto; Shinsuke Tanaka; Takeshi Hoshida (OFC, 2024)

U-Band Transmission Characteristics over Standard Cladding Step-Index 4-Core Fiber Span. - Daiki Soma; Tomoyuki Kato; Shohei Beppu; Daniel J. Elson; Hidenobu Muranaka; Hiroyuki Irie; Shun Okada; Yu Tanaka; Yuta Wakayama; Noboru Yoshikane; Takeshi Hoshida; Takehiro Tsuritani (OFC, 2024)

Impact of Symbol Rate Optimization and Laser Frequency Stability on Transmission Reach of Super-Channel Transceiver Configurations for Beyond 1.6 Tb/s. - Olga Vassilieva; Inwoong Kim; Hiroyuki Irie; Hisao Nakashima; Takeshi Hoshida; Paparao Palacharla (OFC, 2024)

Distortion Characterization and Performance Estimation of Time-interleaved DAC and ADC Based on the Measurement of Nonlinear Noise Spectrum. - Tong Ye; Ke Zhang; Xiaofei Su; Jingnan Li; Hisao Nakashima; Takeshi Hoshida; Zhenning Tao (OFC, 2024)

Deep-Depth Probability-Maintained Notch Sequences for PAM. - Jingnan Li; Tong Ye; Xiaofei Su; Yangyang Fan; Ke Zhang; Shiyu Shi; Hisao Nakashima; Takeshi Hoshida; Zhenning Tao; Yojiro Mori; Hiroshi Hasegawa (IEEE DataPort, 2024)

Advanced Multi-Span Signal Monitoring Using Digital Coherent Receivers. - Takeshi Hoshida; Ryu Shinzaki; Motohiko Eto; Kazuyuki Tajima; Kyosuke Sone; Setsuo Yoshida; Naoya Okada; Ichiro Yokokura; Atsushi Kanai; Junichi Sugiyama; Shoichiro Oda; Hisao Nakashima (OFC, 2025)

Single-Carrier High-Capacity Transmission in Bandwidth-Limited Systems. - Guoxiu Huang; Hisao Nakashima; Takeshi Hoshida (OFC, 2025)

Low-cost and Power-efficient EEPN Mitigation Enabled by Accurate Jitter Waveform Estimation. - Jingnan Li; Xiaofei Su; Tong Ye; Ke Zhang; Hisao Nakashima; Takeshi Hoshida; Zhenning Tao (OFC, 2025)

Demonstration of State-of-polarization Change Localization Based on Digital Coherent Transceivers. - Naoya Okada; Joji Terashi; Setsuo Yoshida; Reiko Kuroiwa; Yu Tajima; Ichiro Yokokura; Atsushi Kanai; Junichi Sugiyama; Norihiro Yoshida; Shoichiro Oda; Kousuke Komaki; Takeshi Hoshida (OFC, 2025)

Maximizing Throughput by Band-wise Bidirectional SCLU Transmission with Lumped Amplification. - Olga Vassilieva; Inwoong Kim; Hiroyuki Irie; Hisao Nakashima; Takeshi Hoshida; Paparao Palacharla (OFC, 2025)

An Accurate, Sensitive, and Wide-range Skew Calibration Method for Transmitter with Segmented Modulator Using Probability-maintained Multi-notch Sequence. - Tong Ye; Jingnan Li; Ke Zhang; Xiaofei Su; Shinsuke Tanaka; Yohei Sobu; Hisao Nakashima; Takeshi Hoshida; Zhenning Tao (OFC, 2025)

Low-Complexity Digital Twinning of Optical I/Q Modulator by Direct-Detection with Widely Non-Linear Phase Retrieval. - Yuki Yoshida; Shoichiro Oda; Naokatsu Yamamoto; Takeshi Hoshida; Kouichi Akahane (OFC, 2025)

In-service Monitor and Pre-compensation of 100 Gbaudclass Coherent Transmitter by a 5 GHz Photodetector. - Ke Zhang; Jingnan Li; Tong Ye; Hisao Nakashima; Takeshi Hoshida; Zhenning Tao (OFC, 2025)