Quasi-Constant Signal Power Transmission with Low Signal RIN by DRA with Incoherent-Forward and Coherent-Backward Pumps. - Shigehiro Takasaka; Norihiro Ohishi; Satoru Ichihara; Nitidet Thudsalingkarnsakul; Naoya Hojo; Yasuto Tatamida; Junji Yoshida; Sanguan Anantathanasarn; Toshio Kimura (OFC, 2023)

C+L Band Transmission under Bidirectionally Pumped Distributed Raman Amplification Using Semiconductor Incoherent Pumps. - Shigehiro Takasaka; Daichi Ogata; Ayato Shirai; Satoru Ichihara; Junji Yoshida; Norihiro Ohishi (OFC, 2024)

403 km, 10.3 Tb/s, Unrepeatered Link Using Incoherent Raman Amplification Without ROPA. - R. S. Luis; Divya A. Shaji; Daniele Orsuti; Norihiro Ohishi; Junji Yoshida; Benjamin J. Puttnam; Luca Palmieri 001; Cristian Antonelli; H. Furukawa (OFC, 2025)

Transmission Distance Extension by Using Wideband Incoherent Forward Pumps in Bidirectional Distributed Raman Amplification Compared to Coherent Pumps. - Daichi Ogata; Shigehiro Takasaka; Junji Yoshida; Norihiro Ohishi (OFC, 2025)