18,090-km 2-core Fiber Transmission Using Circulatory Directional Fan-in/Fan-out Devices. - Daiki Soma; Shohei Beppu; Lídia Galdino; Michael Lorenz; Qiulin Ma; Katsuhiro Iwasaki; Seiya Sumita; Kosuke Komatsu; Daniel J. Elson; Tomoaki Kiriyama; Katsuya Kito; Keito Kitamura; et al. (OFC, 2024)

Core-level Routing in Long-haul MCF Transmission System with FIFO-less Multicore EDFA and Spatial Cross-connect. - Kosuke Komatsu; Shohei Beppu; Daiki Soma; Yuta Wakayama; Noboru Yoshikane; Masahiko Jinno; Takehiro Tsuritani (OFC, 2025)

Demonstration of 4-Core/16-Core Fiber Heterogeneous Spatial Channel Network Comprising 19-Core Fiber Core Selective Switch-Based Spatial Gateway, 4-Core EDFAs, and 19-Core EDFAs. - Takumi Tani; Daiki Soma; Ryohei Otowa; Yusuke Matsuno; Kyosuke Nakada; Kosuke Komatsu; Yuji Hotta; Tsubasa Sasaki; Rika Tahara; Shohei Beppu; Koichi Maeda; Takuma Izumi; et al. (OFC, 2025)

High-isolation and Low-crosstalk Optical-circulator-based 2-core Fan-out Device. - Yuta Wakayama; Asumi Kaya; Ikuya Saji; Shohei Beppu; Kosuke Komatsu; Daiki Soma; Taketoshi Takahata; Tetsuya Kobayashi; Lídia Galdino; Kevin Bennett; Sergejs Makovejs; Noboru Yoshikane; et al. (OFC, 2025)