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应用等效规则优化法设计光通信光栅

Keywords: 等效规则,WDM,高衍射效率,C波段,全息光栅

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Abstract:

基于光栅电磁场理论,应用光栅等效规则计算光栅槽形初始值、结合衍射效率等高线法优化设计光栅槽形,给出了具有几何对称中心的任意槽形光栅.以全息工艺上易于制作的正弦、矩形和两种梯形典型槽形光栅为例进行优化设计,结果表明,正弦槽形光栅C波段TM波衍射效率理论峰值为95%,测量值为92%.较互易定理优化方法,等效规则优化法拓宽了光通信光栅的制作方法、降低了制作难度,为全息方法制作光通信光栅提供了理论依据.

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