Single-Channel 10.2 Tbit/s PDM-DQPSK Nyquist Pulse Transmission over 300 km. - Toshihiko Hirooka; Ryoya Hirata; Jianping Wang; Masato Yoshida; Masataka Nakazawa (ECOC, 2018)

Sub-Picosecond Optical Switch over Entire C-Band by Using Nonlinear Optical Loop Mirror. - Ryoya Hirata; Toshihiko Hirooka; Masato Yoshida; Masataka Nakazawa (OECC/PSC, 2019)

Wavelength-tunable sub-picosecond optical switch over entire C-band using nonlinear optical loop mirror. - Ryoya Hirata; Toshihiko Hirooka; Masato Yoshida; Masataka Nakazawa (IEICE Electron. Express, 2019)