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Y型光子晶体偏振光分束器

Keywords: 光子晶体,偏振光分束器,时域有限差分法

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Abstract:

基于偏振模式不同的光波在二维光子晶体中的传播特性不同,设计出一个支路半径相同的Y型二维光子晶体偏振光分束器.通过时域有限差分法对该分束器进行数值计算与模拟分析.结果表明,该分束器能够实现TE模和TM模平行、高效分束.当波长为1.55μm的高斯脉冲入射时,TE模透射率可达97%,TM模透射率可达93.5%,且该结构尺寸仅有6.3μm?6.8μm.这些特性使其在未来的集成光路中具有很好的应用前景.

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