A free-space 1 x 2 wavelength-selective switch (WSS) based on thin-film filter technology is proposed. The 1 x 2 WSS is fabricated with an electromagnetic actuator, a reflecton prism, a narrow-band thin-film filter, and three fiber collimators. The working principle and the configuration of WSS are illuminated. The experimental results indicate a fiber-to-fiber insertion loss ranging from 1.109 to 1.249 dB with 2-V voltage input, which satisfies the application of optical fiber communication.
© 2009 Chinese Optics Letters
(060.1810) Fiber optics and optical communications : Buffers, couplers, routers, switches, and multiplexers
(130.3120) Integrated optics : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices
Xiaoqi Li, Jingqiu Liang, Degui Sun, Wei Li, and Zhongzhu Liang, "Free-space 1 x 2 wavelength-selective switches for wavelength-division multiplexing optical networks," Chin. Opt. Lett. 7, 553-555 (2009)