Full C-Band and Power Efficient Coupled-Multi-Core Fiber Amplifier. - Masaki Wada; Taiji Sakamoto; Shinichi Aozasa; Ryota Imada; Takashi Yamamoto; Kazuhide Nakajima (OFC, 2020)

Silica-PLC based mode-dependent-loss equalizer for two LP mode transmission. - Takeshi Fujisawa; Takayoshi Mori; Junji Sakamoto; Yoko Yamashita; Taiji Sakamoto; Ryota Imada; Ryoto Ima; Takanori Sato; Kei Watanabe; Ryoichi Kasahara; Toshikazu Hashimoto; Kazuhide Nakajima; et al. (OFC, 2022)

Mode-dependent Gain Reduction in Coupled Multi-core EDF with Smaller Core Pitch. - Ryota Imada; Taiji Sakamoto; Shinichi Aozasa; Kazuhide Nakajima (OFC, 2022)

Unique Bending Loss Properties and Design Consideration for Coupled Multi-core Fiber. - Ryota Imada; Taiji Sakamoto; Takayoshi Mori; Yusuke Yamada; Kazuhide Nakajima (OFC, 2023)

Characterization of Coupled Multi-core Fiber Nonlinearity using Modified CW-SPM Method. - Taiji Sakamoto; Ryota Imada; Kazuhide Nakajima (OFC, 2023)

Design of PLC E31-E13 and E-LP tapered mode converters using fast quasiadiabatic dynamics. - Han Wang; Takeshi Fujisawa; Takanori Sato; Masaki Wada; Takayoshi Mori; Taiji Sakamoto; Ryota Imada; Takashi Matsui; Kazuhide Nakajima; Kunimasa Saitoh (IEICE Electron. Express, 2023)

Transoceanic-Class WDM/SDM Transmission of PDM-QPSK Signals over Coupled 12-Core Fiber. - Manabu Arikawa; Kohki Shibahara; Taiji Sakamoto; Ryota Imada; Kazuhide Nakajima; Yutaka Miyamoto; Emmanuel Le Taillandier de Gabory (OFC, 2024)

Low-Complexity 4D×D MIMO Equalizer Enabling 2.6-Tb/s/λ SDM Signal Reception over Dynamic Four-Coupled-Core Cabled Transmission Line. - Akira Kawai; Kohki Shibahara; Masanori Nakamura; Takayuki Kobayashi; Takayoshi Mori; Ryota Imada; Taiji Sakamoto; Yusuke Yamada; Kazuhide Nakajima; Yutaka Miyamoto (OFC, 2024)

Energy-efficient Cladding-pumped Amplifier for Coupled Multi-core Fiber Transmission. - Taiji Sakamoto; Masaki Wada; Ryota Imada; Kazuhide Nakajima (OFC, 2024)

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)