Compact and low power DP-QPSK modulator module with InP-based modulator and driver ICs. - Naoya Kono; Takamitsu Kitamura; Hideki Yagi; Naoki Itabashi; Taizo Tatsumi; Yasuyuki Yamauchi; Kosuke Fujii; Kazuhiko Horino; Shingo Yamanaka; Keiji Tanaka; Kazuhiro Yamaji; Chie Fukuda; et al. (OFC/NFOEC, 2013)

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)

High Linearity and Uniform Characteristics of InP-Based 8-CH Waveguide Avalanche Photodiode Array for 400 GbE. - Takuya Okimoto; Ken Ashizawa; Koji Ebihara; Satoru Okamoto; Takumi Endo; Kazuhiko Horino; Tatsuya Takeuchi; Toru Uchida; Hideki Yagi; Yoshihiro Yoneda (OFC, 2020)

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)