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)