二元微透镜阵列在密集多载波波分复用器中的应用 |
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引用本文: | 吴小萍,范朝阳.二元微透镜阵列在密集多载波波分复用器中的应用[J].光学学报,1997,17(8):103-1107. |
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作者姓名: | 吴小萍 范朝阳 |
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作者单位: | [1]浙江大学信息与电子工程学系 [2]浙江大学物理系 |
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摘 要: | 介绍了采用位相平衡设计法设计优化的二元微透镜阵列,并应用于工作波长为1.536 ̄1.564μm,通信间隔4nm的8通道光栅型密集波分复用器。设计并计算了二元微透镜各单元的位相结构和接收光纤端面上的衍射远场分布,最后讨论了当采用单模和多模接收光纤时,二元微透镜阵列部分引入的损耗及其在多模接收光纤中激起的基模比例。
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关 键 词: | 波分复用器 耦合效率 二元透镜 多载波 微透镜 |
收稿时间: | 1996/4/3 |
Analysis on Insertion Loss and Backward Isolation of Wedge Type Polarization Independent Optical Isolator |
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Abstract: | On the basis of the theory of Gaussian light beams transmission, the analytical equation is derived to calculate the insertion loss and backward isolation of Wedge type optical isolator. The relationships between isolation, insertion loss and declined angle of birefrective crystal and distance of two birefrective crystals are obtained respectively. The factors of influencing insertion loss and isolation of optical isolator are analysised. Exprimental results agree with theoretical analysis. |
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Keywords: | optical isolator insertion loss isolation |
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