Multi-Core Fibre with Concaved Double-D Shape Cross Section. - Takuji Nagashima; Shuhei Toyokawa; Tetsuya Hayashi; Tetsu Morishima; Hirotaka Sakuma; Tetsuya Nakanishi (ECOC, 2017)

Accurate Passive Rotational Alignment of Multi-Core Fibre with Double-D-Shape Cladding on V Groove. - Yuki Saito 005; Tetsuya Hayashi; Takuji Nagashima; Shuhei Toyokawa; Tetsuya Nakanishi; Tomomi Sano (ECOC, 2018)

Double-D-Shaped Multi-Core Fiber with Suppressed Dimensional Fluctuation. - Takuji Nagashima; Hirotaka Sakuma; Shuhei Toyokawa; Tetsuya Hayashi; Tetsuya Nakanishi (OECC/PSC, 2019)

Simple-Structure LC-Type Multi-Core Fiber Connector with Low Insertion Loss. - Tetsu Morishima; Ken Manabe; Shuhei Toyokawa; Tetsuya Nakanishi; Tomomi Sano; Tetsuya Hayashi (OFC, 2020)

96-Core MPO-APC Connector using 4-core fiber with SMF Standard Insertion Loss Grade. - Kohei Haji; Yuki Saito 005; Shuhei Toyokawa; Shintaro Mouri; Tetsu Morishima (OFC, 2024)