A passive optical alignment technique for single-mode fibers and light-source arrays. - Koichiro Adachi; Akira Nakanishi; Takanori Suzuki; Hiroki Irie; Yusuke Sasaki; T. Aoki; Masato Shishikura; Kazuhiko Naoe; Shigehisa Tanaka (OFC, 2017)

53-Gbaud PAM4 Differential Drive of a Conventional EA/DFB Toward Driver-Amplifier-Less Optical Transceivers. - Koichiro Adachi; Takayoshi Fukui; Masato Shishikura; Akira Nakanishi; Atsushi Nakamura; Takanori Suzuki; Shigehisa Tanaka (OFC, 2019)