A compact low-power 224-Gb/s DP-16QAM modulator module with InP-based modulator and linear driver ICs. - Taizo Tatsumi; Naoki Itabashi; Tomoko Ikagawa; Naoya Kono; Morihiro Seki; Keiji Tanaka; Kazuhiro Yamaji; Yasushi Fujimura; Katsumi Uesaka; Takashi Nakabayashi; Hajime Shoji; Shoichi Ogita (OFC, 2014)