106-Gb/s PAM4 Operation of Directly Modulated DFB Lasers from 25 to 70°C for Transmission over 2-km SMF in the CWDM range. - Takayuki Nakajima; Masaru Onga; Yuji Sekino; Akira Nakanishi; Noriko Sasada; Shigenori Hayakawa; Shigetaka Hamada; Kazuhiko Naoe (OFC, 2021)

10-km Transmission of 106-Gb/s PAM4 with Directly Modulated DFB Lasers in the CWDM Range. - Shuhei Ohno; Masaru Onga; Takayuki Nakajima; Akira Nakanishi; Noriko Sasada; Shinichi Tanaka; Ryosuke Nakajima; Kazuhiko Naoe (OFC, 2023)