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Design of coupling efficiency between fibers in mems optical switch array
Author(s): NIU Kai, YE Xiongying, ZHOU Zhaoying, HOU Bin, LIU Sheng
Pages: 431-
433,436
Year: 2004
Issue:
4
Journal: OPTICAL TECHNIQUE
Keyword: 高斯光束; ABCD矩阵; 球透镜; 耦合效率;
Abstract: 利用高斯光束传输理论进行了阵列光开关的光纤耦合设计计算.根据ABCD矩阵推导出了光束通过球透镜时的传播规律,计算了在光纤与光纤之间两个球透镜耦合的效率,分析了影响耦合效率的因素.通过设计计算,确定了光纤端部的位置,使得整个损耗达到了最小.从理论上来看,在波长λ=1.55μm时,4×4阵列光开关的耦合效率可以达到91%以上.
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