Four-Channel Integrated Receiver with a Built-In Spatial Demultiplexer Optics for 100 Gb/s Ethernet. - Keita Mochizuki; Hiroshi Aruga; Hiromitsu Itamoto; Keitaro Yamagishi; Yuichiro Horiguchi; Satoshi Nishikawa; Ryota Takemura; Masaharu Nakaji; Atsushi Sugitatsu (IEICE Trans. Electron., 2013)

Tunable 16 DFB laser array with unequally spaced passive waveguides for backside wavelength monitor. - Y. Sasahata; K. Matsumoto; T. Nagira; H. Sakuma; K. Kishimoto; M. Suzuki; D. Suzuki; Yuichiro Horiguchi; M. Takabayashi; Keita Mochizuki; M. Gotoda; Hiroshi Aruga; et al. (OFC, 2014)

Separation of semiconductor laser intrinsic linewidth and 1/f noise using multiple fiber lengths with the delayed self-heterodyne method. - Keisuke Kojima; Yuichiro Horiguchi; Toshiaki Koike-Akino; Yasuhisa Shimakura; Kentaro Enoki; Eiji Yagyu (OFC, 2015)