Chinese Optics Letters, 2011, 9 (9): 090601, Published Online: Jun. 20, 2011
Wavelength-selective switch based on a high f ill-factor micromirror array 
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波长选择开关 透射光栅 微镜阵列 偏振无关 微电子机械系统 060.2605 Free-space optical communication 130.4815 Optical switching devices 230.4040 Mirrors 230.4685 Optical microelectromechanical devices
Abstract
A novel design and fabrication approach for a high fill-factor micro-electro-mechanical system (MEMS) micromirror array-based wavelength-selective switch (WSS) is presented. The WSS is composed of a polarization-independent transmission grating and a high fill-factor micromirror array. The WSS is successfully demonstrated based on the fabricated high fill-factor micromirror array. Test results show that the polarization-dependent loss (PDL) is less than 0.3 dB and that the insertion loss (IL) of the wavelength channel is about –6 dB. The switching function between the two output ports of WSS is measured. The forward switching time is recorded to be about 0.5 ms, whereas the backward switching time is about 7 ms.
Sihua Li, Zhujun Wan, Jing Xu, Shaolong Zhong, Yaming Wu. Wavelength-selective switch based on a high f ill-factor micromirror array[J]. Chinese Optics Letters, 2011, 9(9): 090601.
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