Vibration-proof mechanism design of free-space optical switch modules using MEMS mirror devices for telecom systems. - Masato Mizukami; Nobuaki Matsuura; Joji Yamaguchi; Tohru Matsuura; Tsuyoshi Yamamoto (AIM, 2013)

In-band OSNR monitors comprising programmable delay line interferometer integrated with wavelength selective switch by spatial and planar optical circuit. - Mitsumasa Nakajima; Naru Nemoto; Keita Yamaguchi; Joji Yamaguchi; Kenya Suzuki; Toshikazu Hashimoto (OFC, 2016)