High-efficient InP-based balanced photodiodes integrated with 90° hybrid MMI for compact 100 Gb/s coherent receiver. - Hideki Yagi; Naoko Inoue; Yutaka Onishi; Ryuji Masuyama; Tomokazu Katsuyama; Takehiko Kikuchi; Yoshihiro Yoneda; Hajime Shoji (OFC/NFOEC, 2013)

High receiver responsivity and low dark current of InP-based pin-photodiode array monolithically integrated with 90° hybrid and spot-size converter using selective embedding regrowth. - Hideki Yagi; Naoko Inoue; Takehiko Kikuchi; Ryuji Masuyama; Tomokazu Katsuyama; Yoshihiro Tateiwa; Katsumi Uesaka; Yoshihiro Yoneda; Masaru Takechi; Hajime Shoji (IEICE Electron. Express, 2015)

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)

Characteristics of GaInAsP/SOI Hybrid Semiconductor Optical Amplifier with InP-based Two-storied Ridge Structure. - Yutaka Makihara; Nobuhiko Nishiyama; Takehiko Kikuchi; Takuo Hiratani; Naoki Fujiwara; Naoko Inoue; Toshiyuki Nitta; Moataz Eissa; Takuya Mitarai; Yuning Wang; Yoshitaka Ohiso; Tomohiro Amemiya; et al. (OECC/PSC, 2022)

InP-based Optical Devices Integrated on Silicon Photonic Circuits. - Takuya Okimoto; Naoki Fujiwara; Naoko Inoue; Takuo Hiratani; Takehiko Kikuchi; Takuya Mitarai; Munetaka Kurokawa; Hajime Tanaka 002; Hidenari Fujikata; Tohma Watanabe; Toshiyuki Nitta; Nobuhiko Nishiyama; et al. (OFC, 2024)