CW-WDM MSA compatible 100-mW (up to 50°C), 400-GHz spacing highly-reliable CW-DFB 8-channel laser array. - Ryosuke Hatai; Kouji Nakahara; Atsushi Nakamura; Takayuki Nakajima; Yoshihiko Kobayashi; Takeo Kageyama; Shigehisa Tanaka (OFC, 2024)

226 Gbps PAM4 Operation Using Differential Drive EA-DFB Laser with 2.0-Vppd Swing over 10-km SSMF Transmission for 1.6TbE Transceivers. - Shuhei Ohno; Takanori Suzuki; Hideaki Matsuzaki; Koichiro Adachi; Ryosuke Hatai; Ryo Nakao; Shinichi Tanaka; Atsushi Mimura; Takashi Suzuki; Noriko Sasada; Shigehisa Tanaka; Kazuhiko Naoe (OFC, 2025)