A miniaturized 43 Gbps EML TOSA employing impedance matched FPC connection. - Mizuki Shirao; Nobuo Ohata; Tetsuhiro Fukao; Tatsuo Hatta; Hiroshi Aruga (OFC/NFOEC, 2013)

An integrated LAN-WDM 400-Gb/s (53Gbaud-PAM4) EML TOSA. - Yosuke Kawamoto; Nobuo Ohata; Tadashi Murao; Hayato Sano; Masashi Binkai; Yudai Imai; Tatsuo Hatta; Kiyotomo Hasegawa (OECC/PSC, 2019)

Si Photonics-Based Compact Wavelength Locker for Small Tunable Laser Modules with Low Power Consumption. - Junichi Suzuki; Kiyotomo Hasegawa; Nobuo Ohata (OECC/PSC, 2022)

Single Wavelength Laser TO-CAN Integrated with One-Chip Wavelength Locker. - Junichi Suzuki; Kiyotomo Hasegawa; Kei Masuyama; Nobuo Ohata (OFC, 2024)

High-Speed EML and Assembly Techniques for GPU Cluster System. - Mizuki Shirao; Takuma Fujita; Shinya Okuda; Asami Uchiyama; Takumi Nagamine; Kenichi Abe; Nobuo Ohata (OFC, 2025)