Dense SDM (12-core × 3-mode) transmission over 527 km with 33.2-ns mode-dispersion employing low-complexity parallel MIMO frequency-domain equalization. - Kohki Shibahara; Takayuki Mizuno; Hidehiko Takara; Akihide Sano; H. Kawakami; D. Lee; Yutaka Miyamoto; Hirotaka Ono 002; Manabu Oguma; Yoshiteru Abe; Takayuki Kobayashi; Takashi Matsui; et al. (OFC, 2015)

Low crosstalk 125 μm-cladding multi-core fiber with limited air-holes fabricated with over-cladding bundled rods technique. - Saki Nozoe; Ryohei Fukumoto; Taiji Sakamoto; Takashi Matsui; Yoshimichi Amma; Katsuhiro Takenaga; Kyozo Tsujikawa; Shinichi Aozasa; Kazuhiko Aikawa; Kazuhide Nakajima (OFC, 2017)

Multi-core Fiber Fabrication in Over-Cladding Bundled Rods Method Applying Polygonal Rods. - Ryohei Fukumoto; Katsuhiro Takenaga; Kazuhiko Aikawa (OECC/PSC, 2019)

MEMS mirror-based 1×4 Core Selective Switch for 12-core fiber with low insertion-loss. - Yuta Goto; Ruben S. Luis; Yusuke Hirota; Satoshi Shinada; Sayaka Nagayama; Asa Higashitani; Tetsuya Kobayashi; Ryohei Fukumoto; Hideaki Furukawa (ECOC, 2021)

Variations in the Optical Characteristics of 200 μm and 250 μm Coated Multicore Fibres Owing to Cabling. - Yusuke Sasaki; Ryohei Fukumoto; Katsuhiro Takenaga; Shogo Shimizu; Kazuhiko Aikawa (ECOC, 2021)

Optical Fiber Cable Employing 200 µm-Coated Multicore Fibers for High Density Wiring in Datacom. - Yusuke Sasaki; Ryohei Fukumoto; Katsuhiro Takenaga; Shogo Shimizu; Kazuhiko Aikawa (OFC, 2021)