Current-voltage characteristics of organic materials similar to inorganic p-n homo-junction. - Hajime Imai; Yu Kawaguchi; Yoko Suzuki; Atsumi Ozawa (IEICE Electron. Express, 2010)

2.05 Peta-bit/s super-nyquist-WDM SDM transmission using 9.8-km 6-mode 19-core fiber in full C band. - Daiki Soma; Koji Igarashi; Yuta Wakayama; Koki Takeshima; Yu Kawaguchi; Noboru Yoshikane; Takehiro Tsuritani; Itsuro Morita; Masatoshi Suzuki (ECOC, 2015)

114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers. - Koji Igarashi; Daiki Soma; Yuta Wakayama; Koki Takeshima; Yu Kawaguchi; Takehiro Tsuritani; Itsuro Morita; Masatoshi Suzuki (OFC, 2015)

Ultra-dense space division multiplexing technologies towards multi-Peta bit/s optical transmission. - Masatoshi Suzuki; Daiki Soma; Koji Igarashi; Yuta Wakayama; Koki Takeshima; Yu Kawaguchi; Noboru Yoshikane; Takehiro Tsuritani; Itsuro Morita (ICTON, 2016)

257-Tbit/s Partial MIMO-based 10-Mode C+L-band WDM Transmission over 48-km FMF. - Daiki Soma; Shohei Beppu; Yuta Wakayama; Yu Kawaguchi; Koji Igarashi; Takehiro Tsuritani (ECOC, 2017)

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)