Multicore EDFA for DWDM transmission in full C-band. - Yukihiro Tsuchida; Koichi Maeda; Kengo Watanabe; Toshiharu Ito; Kiyoshi Fukuchi; Masato Yoshida; Yu Mimura; Ryuichi Sugizaki; Masataka Nakazawa (OFC/NFOEC, 2013)

Multicore EDFA for Space Division Multiplexing. - Yukihiro Tsuchida; Koichi Maeda; Ryuichi Sugizaki (IEICE Trans. Commun., 2014)

51.1-Tbit/s MCF transmission over 2, 520 km using cladding pumped 7-core EDFAs. - Koki Takeshima; Takehiro Tsuritani; Yukihiro Tsuchida; Koichi Maeda; Tsunetoshi Saito; Kengo Watanabe; Toru Sasa; Katsunori Imamura; Ryuichi Sugizaki; Koji Igarashi; Itsuro Morita; Masatoshi Suzuki (OFC, 2015)

Increase of Cladding Pump Power Efficiency by a 19-Core Erbium Doped Fibre Amplifier. - Shigehiro Takasaka; Koichi Maeda; Kohei Kawasaki; Kazuaki Yoshioka; Hajime Oshio; Ryuichi Sugizaki; Yu Kawaguchi; Hidenori Takahashi; Takehiro Tsuritani; Masato Shiino (ECOC, 2017)

Long-Haul MCF Transmission Using Full C+L-Band 19-Core Cladding-Pumped EDFA. - Daiki Soma; Shohei Beppu; Koichi Maeda; Shigehiro Takasaka; Ryuichi Sugizaki; Hidenori Takahashi; Takehiro Tsuritani (ECOC, 2018)

Cladding Pump Recycling in 7-Core EDFA. - Shigehiro Takasaka; Koichi Maeda; Kohei Kawasaki; Kazuaki Yoshioka; Ryuichi Sugizaki; Masayoshi Tsukamoto (ECOC, 2018)

EDF Length Dependence of Amplification Characteristics of Cladding Pumped 19-Core EDFA. - Shigehiro Takasaka; Koichi Maeda; Kohei Kawasaki; Kazuaki Yoshioka; Hajime Oshio; Ryuichi Sugizaki; Hidenori Takahashi; Takehiro Tsuritani; Masato Shiino (OFC, 2018)

WDM Amplification of One Pump HNLF Based Phase Sensitive Amplifier with Static Pump Phase Tuning. - Youichi Akasaka; Yinwen Cao; Shigehiro Takasaka; Kenji Yamauchi; Koichi Maeda; Haoqian Song; Ryuichi Sugizaki; Alan E. Willner; Tadashi Ikeuchi (OFC, 2019)

0.715 Pb/s Transmission Over 2, 009.6 km in 19-Core Cladding Pumped EDFA Amplified MCF Link. - Benjamin J. Puttnam; Georg Rademacher; Ruben S. Luis; Tobias A. Eriksson; Werner Klaus; Yoshinari Awaji; Naoya Wada; Koichi Maeda; Shigehiro Takasaka; Ryuichi Sugizaki (OFC, 2019)

Cladding Pump Recycling Device for 19-Core EDFA. - Shigehiro Takasaka; Koichi Maeda; Kohei Kawasaki; Kazuaki Yoshioka; Ryuichi Sugizaki; Masayoshi Tsukamoto (OFC, 2019)

Field Test of Installed High-Density Optical Fiber Cable with Multi-Core Fibers toward Practical Deployment. - Takehiro Tsuritani; Daiki Soma; Yuta Wakayama; Yuichi Miyagawa; Mikoto Takahashi; Itsuro Morita; Koichi Maeda; Kohei Kawasaki; Toshikazu Matsuura; Masayoshi Tsukamoto; Ryuichi Sugizaki (OFC, 2019)

Propagation Direction Interleaved Cladding Pumped 19-core EDFA. - Koichi Maeda; Shigehiro Takasaka; Kohei Kawasaki; Kazuaki Yoshioka; Ryuichi Sugizaki; Masayoshi Tsukamoto (OECC/PSC, 2019)

Transmission and Crosstalk Measurements in MC-EDFA amplified 19-core link. - Benjamin J. Puttnam; Georg Rademacher; Ruben S. Luís; Tobias A. Eriksson; Werner Klaus; Yoshinari Awaji; Naoya Wada; Koichi Maeda; Shigehiro Takasaka; Ryuichi Sugizaki (OECC/PSC, 2019)

Design of 5-Core Multicore Fibers with Optimized Fiber Design for Practical Applications. - Masanori Takahashi; Koichi Maeda; Ryuichi Sugizaki; Shinichi Arai; Masayoshi Tsukamoto (OECC/PSC, 2019)

Uncoupled 4-core Fibre with Ultra-low Loss and Low Inter Core Crosstalk. - Masanori Takahashi; Koichi Maeda; Keiichi Aiso; Kazunori Mukasa; Ryuichi Sugizaki; Daiki Soma; Hidenori Takahashi; Takehiro Tsuritani; Miranda Mitrovic; Bera Pálsdóttir; Yoshihiro Arashitani (ECOC, 2020)

Output Power Increase of Cladding Pumped 7-core EDFA by Using Mie Scattering. - Shigehiro Takasaka; Koichi Maeda; Ryuichi Sugizaki; Yoshihiro Arashitani (ECOC, 2020)

Multicore Fiber Fabricated by Modified Cylinder Method. - Masanori Takahashi; Koichi Maeda; Ryuichi Sugizaki; Masayoshi Tsukamoto (OFC, 2020)

Full C-band 3317-km 12-Coupled-Core-Fiber Transmission with 266.2-Tbps Capacity Using Field-Installed Fiber-Optic Cable. - Kohki Shibahara; Akira Kawai; Megumi Hoshi; Masanori Nakamura; Takayuki Kobayashi; Ryota Imada; Takayoshi Mori; Taiji Sakamoto; Yusuke Yamada; Kazuhide Nakajima; Munehiko Nagatani; Hitoshi Wakita; et al. (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)