Seiji Okamoto

26 papers Journal 7Unranked 19
YearRankTypeTitle / Venue / Authors
2024 J jnl
Fast WDM provisioning with minimal probing: the first field experiments for DC exchanges.
J. Opt. Commun. Netw.
Hideki Nishizawa, Toru Mano, Thomas Ferreira de Lima, Yue-Kai Huang, Zehao Wang, Wataru Ishida, Masahisa Kawashima, Ezra Ip, Andrea D'Amico, Seiji Okamoto, Takeru Inoue, Kazuya Anazawa, Vittorio Curri, Gil Zussman, Daniel C. Kilper, Tingjun Chen, Ting Wang, Koji Asahi, Koichi Takasugi
2024 — conf
Low-Complexity SD-FEC based on Channel-Polarized Multistage Codes for Data Center Networks.
OFC
Takeshi Kakizaki, Masanori Nakamura, Fukutaro Hamaoka, Seiji Okamoto, Etsushi Yamazaki
2024 J jnl
Semi-Automatic Line-System Provisioning with Integrated Physical-Parameter-Aware Methodology: Field Verification and Operational Feasibility.
CoRR
Hideki Nishizawa, Giacomo Borraccini, Takeo Sasai, Yue-Kai Huang, Toru Mano, Kazuya Anazawa, Masatoshi Namiki, Soichiroh Usui, Tatsuya Matsumura, Yoshiaki Sone, Zehao Wang, Seiji Okamoto, Takeru Inoue, Ezra Ip, Andrea D'Amico, Tingjun Chen, Vittorio Curri, Ting Wang, Koji Asahi, Koichi Takasugi
2024 J jnl
Semi-automatic line-system provisioning with an integrated physical-parameter-aware methodology: field verification and operational feasibility.
J. Opt. Commun. Netw.
Hideki Nishizawa, Giacomo Borraccini, Takeo Sasai, Yue-Kai Huang, Toru Mano, Kazuya Anazawa, Masatoshi Namiki, Soichiroh Usui, Tatsuya Matsumura, Yoshiaki Sone, Zehao Wang, Seiji Okamoto, Takeru Inoue, Ezra Ip, Andrea D'Amico, Tingjun Chen, Vittorio Curri, Ting Wang, Koji Asahi, Koichi Takasugi
2023 J jnl
Fast WDM provisioning with minimal probing: the first field experiments for DC exchanges.
CoRR
Hideki Nishizawa, Toru Mano, Thomas Ferreira de Lima, Yue-Kai Huang, Zehao Wang, Wataru Ishida, Masahisa Kawashima, Ezra Ip, Andrea D'Amico, Seiji Okamoto, Takeru Inoue, Kazuya Anazawa, Vittorio Curri, Gil Zussman, Daniel C. Kilper, Tingjun Chen, Ting Wang, Koji Asahi, Koichi Takasugi
2020 — conf
Simultaneous Detection of Anomaly Points and Fiber Types in Multi-Span Transmission Links Only by Receiver-Side Digital Signal Processing.
OFC
Takeo Sasai, Masanori Nakamura, Seiji Okamoto, Fukutaro Hamaoka, Shuto Yamamoto, Etsushi Yamazaki, Asuka Matsushita, Hideki Nishizawa, Yoshiaki Kisaka
2019 — conf
1.04 Tbps/Carrier Probabilistically Shaped PDM-64QAM WDM Transmission Over 240 km Based on Electrical Spectrum Synthesis.
OFC
Masanori Nakamura, Fukutaro Hamaoka, Munehiko Nagatani, Hiroshi Yamazaki, Takayuki Kobayashi, Asuka Matsushita, Seiji Okamoto, Hitoshi Wakita, Hideyuki Nosaka, Yutaka Miyamoto
2019 — conf
64-GBd PDM-256QAM and 92-GBd PDM-64QAM Signal Generation using Precise-Digital-Calibration aided by Optical-Equalization.
OFC
Asuka Matsushita, Masanori Nakamura, Kengo Horikoshi, Seiji Okamoto, Fukutaro Hamaoka, Yoshiaki Kisaka
2019 — conf
Experimental Analysis of Laser Phase Noise Tolerance of Uniform 256QAM and Probabilistically Shaped 1024QAM.
OFC
Takeo Sasai, Asuka Matsushita, Masanori Nakamura, Seiji Okamoto, Fukutaro Hamaoka, Yoshiaki Kisaka
2019 — conf
Low Complexity Sub-Band Digital Back Propagation.
OFC
Seiji Okamoto, Kengo Horikoshi, Masanori Nakamura, Asuka Matsushita, Fukutaro Hamaoka, Yoshiaki Kisaka
2018 — conf
150.3-Tb/s Ultra-Wideband (S, C, and L Bands) Single-Mode Fibre Transmission over 40-km Using >519Gb/s/A PDM-128QAM Signals.
ECOC
Fukutaro Hamaoka, Kyo Minoguchi, Takeo Sasai, Asuka Matsushita, Masanori Nakamura, Seiji Okamoto, Etsushi Yamazaki, Yoshiaki Kisaka
2018 — conf
4096 QAM (72 Gbit/s) Single-Carrier Coherent Optical Transmission with a Potential SE of 15.8 bit/s/Hz in All-Raman Amplified 160 km Fiber Link.
OFC
Masaki Terayama, Seiji Okamoto, Keisuke Kasai, Masato Yoshida, Masataka Nakazawa
2018 — conf
Adaptive Compensation for SOA-Induced Nonlinear Distortion with Training-Based Estimation of SOA Device Parameters.
ECOC
Fukutaro Hamaoka, Seiji Okamoto, Masanori Nakamura, Asuka Matsushita, Yoshiaki Kisaka
2018 — conf
Experimental and Numerical Comparison of Probabilistically-Shaped 4096 QAM and Uniformly-Shaped 1024 QAM in All-Raman Amplified 160 km Transmission.
OFC
Seiji Okamoto, Masaki Terayama, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, Masataka Nakazawa
2018 — conf
Experiments on Stimulated Raman Scattering in S- and L-bands 16-QAM Signals for Ultra-Wideband Coherent WDM Systems.
OFC
Kyo Minoguchi, Seiji Okamoto, Fukutaro Hamaoka, A. Matsushita, Masanori Nakamura, Etsushi Yamazaki, Yoshiaki Kisaka
2018 — conf
Laser Phase Noise Tolerance of Probabilistically-Shaped Constellations.
OFC
Seiji Okamoto, Fukutaro Hamaoka, Masanori Nakamura, Yoshiaki Kisaka
2018 — conf
Observation of Guided Acoustic-Wave Brillouin Scattering and its Digital Compensation in Coherent QAM Transmission.
OFC
Masataka Nakazawa, Masaki Terayama, Seiji Okamoto, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka
2018 — conf
Spectrally Efficient 800 Gbps/Carrier WDM Transmission with 100-GHz Spacing Using Probabilistically Shaped PDM-256QAM.
ECOC
Masanori Nakamura, Asuka Matsushita, Seiji Okamoto, Fukutaro Hamaoka, Yoshiaki Kisaka
2018 — conf
Transmission Technologies Beyond 400-Gbps/Carrier Employing High-Order Modulation Formats.
ECOC
Asuka Matsushita, Masanori Nakamura, Fukutaro Hamaoka, Seiji Okamoto
2017 J jnl
400Gbit/s/ch Field Demonstration of Modulation Format Adaptation Based on Pilot-Aided OSNR Estimation Using Real-Time DSP.
IEICE Trans. Commun.
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
2017 — conf
Experimental Demonstration of Simplified Adaptive Equalizer for Fractionally Sampled 120-GBaud Signal.
ECOC
Fukutaro Hamaoka, Seiji Okamoto, Masanori Nakamura, Asuka Matsushita, Takayuki Kobayashi, Hiroshi Yamazaki, Munehiko Nagatani, Yoshiaki Kisaka, Akira Hirano, Yutaka Miyamoto
2016 — conf
Field experiment of OSNR-aware adaptive optical transmission with pilot-aided bidirectional feedback channel.
OFC
Seiji Okamoto, Kazushige Yonenaga, Fukutaro Hamaoka, Yoshiaki Kisaka
2016 — conf
Mode and polarization division multiplexed signal detection with single coherent receiver using mode-selective coherent detection technique.
OFC
Fukutaro Hamaoka, Seiji Okamoto, Kengo Horikoshi, Kazushige Yonenaga, Akira Hirano, Yutaka Miyamoto
2015 — conf
Adaptive pre-equalization using bidirectional pilot sequences to estimate and feed back amplitude transfer function and chromatic dispersion.
OFC
Seiji Okamoto, Mitsuteru Yoshida, Kazushige Yonenaga, Tomoyoshi Kataoka
2011 J jnl
256 QAM Digital Coherent Optical Transmission Using Raman Amplifiers.
IEICE Trans. Commun.
Masato Yoshida, Seiji Okamoto, Tatsunori Omiya, Keisuke Kasai, Masataka Nakazawa
2010 J jnl
60Gbit/s 64 QAM-OFDM coherent optical transmission with a 5.3GHz bandwidth.
IEICE Electron. Express
Tatsunori Omiya, Seiji Okamoto, Keisuke Kasai, Masato Yoshida, Masataka Nakazawa