论文信息 - Low-crosstalk 1*2 optical switch composed of twisted nematic liquid crystal cells

Low-crosstalk 1*2 optical switch composed of twisted nematic liquid crystal cells

A low-crosstalk structure for a 1*2 optical switch using twisted nematic liquid crystal (TN-LC) cells is proposed. Low crosstalk can be obtained by using a walkoff polarizing beam splitter between two TN-LC cells mutually controlled in opposite states. A 1*2 polarization-independent optical switch is assembled using single-mode fibers. Its insertion loss and crosstalk, in both switching modes, are <or=1.6 dB and <or=-37.1 dB, respectively.<<ETX>>

Y. Fujii | Y. Fujii

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