Wavelength-selective switch based on a high fill-factor micromirror array
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摘要:
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.