Optical FSK/IM Signal Generation Using an Integrated Optical FSK Modulator. - Tetsuya Kawanishi; Kaoru Higuma; Takahisa Fujita; Junichiro Ichikawa; Satoshi Shinada; Takahide Sakamoto; Masayuki Izutsu (IEICE Electron. Express, 2004)

10Gbit/s FSK transmission over 95km SMF using a LiNbO3 modulator. - Takahisa Fujita; Tetsuya Kawanishi; Kaoru Higuma; Junichiro Ichikawa; Satoshi Shinada; Takahide Sakamoto; Masayuki Izutsu (IEICE Electron. Express, 2005)

Optical FSK transmission with group delay compensated balance detection. - Tetsuya Kawanishi; Takahisa Fujita; Kaoru Higuma; Junichiro Ichikawa; Takahide Sakamoto; Masayuki Izutsu (IEICE Electron. Express, 2005)

Programmable Coupler Ladder Based on Lithium Niobate Y-Junction Reflector. - Jianxiao Chen; Tetsuya Kawanishi; Kaoru Higuma; Satoshi Shinada; William S. C. Chang; Masayuki Izutsu; Paul K. L. Yu (IEICE Trans. Electron., 2005)

A bias condition monitor technique for the nested Mach-Zehnder modulator. - Kaoru Higuma; Shingo Mori; Tetsuya Kawanishi; Masayuki Izutsu (IEICE Electron. Express, 2006)

100 Gb/s DQPSK field trial: Live video transmission over an operating LambdaXtreme® network. - Gregory Raybon; Peter J. Winzer; Haoyu Song 001; Andrew Adamiecki; Stephen Corteselli; Alan H. Gnauck; Thomas Kissell; Daniel A. Fishman; Nat M. Denkin; Yuan-Hua Claire Kao; Terry L. Downs; Anthony Carenza; et al. (Bell Labs Tech. J., 2010)

120-Gb/s NRZ-DQPSK signal generation by a thin-lithium-niobate-substrate modulator. - Atsushi Kanno; Takahide Sakamoto; Akito Chiba; Tetsuya Kawanishi; Kaoru Higuma; Masaaki Sudou; Junichiro Ichikawa (IEICE Electron. Express, 2010)

90 Gbaud NRZ-DP-DQPSK Modulation with Full-ETDM Technique Using High-Speed Optical IQ Modulator. - Atsushi Kanno; Takahide Sakamoto; Akito Chiba; Masaaki Sudo; Kaoru Higuma; Junichiro Ichikawa; Tetsuya Kawanishi (IEICE Trans. Electron., 2011)

High-Speed Optical and Millimeter-Wave Wireless Link for Disaster Recovery. - Ken-ichi Kitayama; Yuki Yoshida; Yuya Yamaguchi; Hirochika Nakajima; Kohsuke Nishimura; Abdelmoula Bekkali; Masayuki Oishi; Hidenori Iwai; Kazuya Ota; Norihiko Sato; Naoyasu Kamiya; Keiji Tanaka; et al. (GLOBECOM Workshops, 2015)