25.8Gbps Direct Modulation AlGaInAs DFB lasers of low power consumption and wide temperature range operation for data center. - Naoki Nakamura; Masaaki Shimada; Go Sakaino; Takashi Nagira; Harunaka Yamaguchi; Yuichiro Okunuki; Atsushi Sugitatsu; Masayoshi Takemi (OFC, 2015)

106-Gbps PAM4 Operation at an Extinction Ratio above 3.5 dB using a Conventional Buried-Heterostructure Directly Modulated Laser. - Kosuke Shinohara; Ryosuke Miyagoshi; Yosuke Suzuki; Ryoko Suzuki; Go Sakaino; Masaaki Shimada; Keisuke Matsumoto (OFC, 2023)