InP-Based Monolithic Integration Technologies for 100/200Gb/s Pluggable Coherent Transceivers. - Hideki Yagi; Yoshihiro Yoneda; Mitsuru Ekawa; Hajime Shoji (IEICE Trans. Electron., 2017)

Study on the optical damage mechanism of InP IQ modulators using a step stress test. - Hajime Tanaka 002; Tsutomu Ishikawa; Mitsuru Ekawa (OECC/PSC, 2019)

InP-Based Photodetectors Monolithically Integrated with 90° Hybrid toward Over 400Gb/s Coherent Transmission Systems. - Hideki Yagi; Takuya Okimoto; Naoko Inoue; Koji Ebihara; Kenji Sakurai; Munetaka Kurokawa; Satoru Okamoto; Kazuhiko Horino; Tatsuya Takeuchi; Kouichiro Yamazaki; Yoshifumi Nishimoto; Yasuo Yamasaki; et al. (IEICE Trans. Electron., 2019)

Highly Reliable and Compact InP-Based In-Phase and Quadrature Modulators for Over 400 Gbit/s Coherent Transmission Systems. - Hajime Tanaka 002; Tsutomu Ishikawa; Takashi Kitamura 002; Masataka Watanabe; Ryuji Yamabi; Ryo Yamaguchi; Naoya Kono; Takehiko Kikuchi; Morihiro Seki; Tomokazu Katsuyama; Mitsuru Ekawa; Hajime Shoji (IEICE Trans. Electron., 2020)

High Optical Output Power and High-responsivity IC-TROSA for 800 Gbps applications. - Munetaka Kurokawa; Kenichi Nakayama; Masaru Takechi; Yasutaka Mizuno; Taichi Misawa; Eiichi Banno; Hiroshi Uemura; Yoshiyuki Sugimoto; Seiji Kumagai; Takuya Okimoto; Naoya Kono; Tsutomu Ishikawa; et al. (ECOC, 2021)

InP-based PIC integrated with Butt-joint Coupled Waveguide p-i-n PDs for 100GBaud Coherent Networks. - Takuya Okimoto; Hideki Yagi; Koji Ebihara; Kouichiro Yamazaki; Satoru Okamoto; Yusuke Ohkura; Kazuhiko Horino; Ken Ashizawa; Mitsuru Ekawa; Yoshihiro Yoneda (OFC, 2021)

106-Gb/s Waveguide AlInAs/GaInAs Avalanche Photodiode with Butt-joint Coupling Structure. - Takuya Okimoto; Ken Ashizawa; Hiroki Mori; Koji Ebihara; Kouichiro Yamazaki; Satoru Okamoto; Kazuhiko Horino; Yusuke Ohkura; Hideki Yagi; Mitsuru Ekawa; Yoshihiro Yoneda (OFC, 2022)

80-GHz Bandwidth and High Responsivity of InP Coherent Receiver PIC with Butt-joint waveguide PDs. - Takuya Okimoto; Hideki Yagi; Ken Ashizawa; Kouichiro Yamazaki; Koji Ebihara; Satoru Okamoto; Kazuhiko Horino; Munetaka Kurokawa; Yoshiyuki Sugimoto; Seiji Kumagai; Keiji Tanaka; Masaru Takechi; et al. (OFC, 2023)