Mode and polarization division multiplexed signal detection with single coherent receiver using mode-selective coherent detection technique. - Fukutaro Hamaoka; Seiji Okamoto; Kengo Horikoshi; Kazushige Yonenaga; Akira Hirano; Yutaka Miyamoto (OFC, 2016)

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)

64-GBd PDM-256QAM and 92-GBd PDM-64QAM Signal Generation using Precise-Digital-Calibration aided by Optical-Equalization. - Asuka Matsushita; Masanori Nakamura; Kengo Horikoshi; Seiji Okamoto; Fukutaro Hamaoka; Yoshiaki Kisaka (OFC, 2019)

Low Complexity Sub-Band Digital Back Propagation. - Seiji Okamoto; Kengo Horikoshi; Masanori Nakamura; Asuka Matsushita; Fukutaro Hamaoka; Yoshiaki Kisaka (OFC, 2019)