Novel Bidirectional Multicore EDFA Based on Twin Turbo Cladding Pumping Using Bidirectional Pumping and Recycling. - Hitoshi Takeshita; Yusuke Shimomura; Shoma Tateno; Kohei Hosokawa; Emmanuel Le Taillandier de Gabory (OECC/PSC, 2022)

Single Multicore-Fiber Bidirectional Spatial Channel Network Based on Spatial Cross-Connect and Multicore EDFA Efficiently Accommodating Asymmetric Traffic. - Kyosuke Nakada; Hitoshi Takeshita; Yuki Kuno; Yusuke Matsuno; Itsuki Urashima; Yusuke Shimomura; Yuji Hotta; Tsubasa Sasaki; Yudai Uchida; Kohei Hosokawa; Ryohei Otowa; Rika Tahara; et al. (OFC, 2023)

Bidirectional single-multicore-fiber spatial channel network based on a spatial cross-connect and multicore EDFA that efficiently accommodates asymmetric data traffic. - Kyosuke Nakada; Hitoshi Takeshita; Yuki Kuno; Yusuke Matsuno; Itsuki Urashima; Yusuke Shimomura; Yuji Hotta; Tsubasa Sasaki; Yudai Uchida; Kohei Hosokawa; Ryohei Otowa; Rika Tahara; et al. (JOCN, 2023)

Transmission capacity expansion using bidirectional multicore EDFA under bidirectional signal assignment. - Hitoshi Takeshita; Yusuke Shimomura; Kohei Hosokawa (OFC, 2024)

Bidirectional 4-core MC-EDFA featuring integrated optical components and inter-core optical loopback function. - Hitoshi Takeshita; Yusuke Shimomura; Wakako Maeda (OFC, 2025)