Dual Evanescently Coupled Waveguide Photodiodes with High Reliability for over 40-Gbps Optical Communication Systems. - Kazuhiro Shiba; Yasuyuki Suzuki; Sawaki Watanabe; Tadayuki Chikuma; Takeshi Takeuchi; Kikuo Makita (IEICE Trans. Electron., 2010)

Compact 100-Gb/s DP-QPSK intradyne coherent receiver module employing Si waveguide. - Morio Takahashi; Takashi Matsumoto; Shinya Watanabe; Kazuhiro Shiba; Taro Kaneko; Mamoru Oguro; Tadayuki Chikuma; Naoki Kitamura; Hiroyuki Yamazaki (ECOC, 2015)