Design of single-polarization single-mode coupler based on dual-core photonic crystal fiber

Design of single-polarization single-mode coupler based on dual-core photonic crystal fiber
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基于双芯光子晶体光纤的单偏振单模耦合器设计

DOI:
10.1117/1.oe.55.2.027101
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发表时间:
2016-02
影响因子:
1.3
通讯作者:
Yu Fei
Yu Fei
中科院分区:
工程技术4区
文献类型:
--
作者:
Wang Guochen;Wang Zhenpeng;Yu Fei

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抽象。采用全矢量有限元法设计并研究了一种具有各向异性完全匹配层的单偏振单模光子晶体光纤耦合器。我们数值分析了SPSM耦合特性与结构参数和限制损耗特性的关系。结果表明,由于硅桥的能量传递,双芯间的耦合长度可达毫米量级;通过优化设计参数,SPSM耦合区域可覆盖1.3或1.55 μm的通信窗口。而且在单偏振范围内,x偏振的限制损耗比y偏振的限制损耗大3个数量级。所提出的SPSM PCF耦合器可以在偏振敏感系统中找到应用。
Abstract. A single-polarization single-mode (SPSM) photonic crystal fiber (PCF) coupler is designed and investigated by using full-vector finite-element method with the anisotropic perfectly matched layer. We numerically analyze the SPSM coupling properties with respect to the structure parameters and confinement loss characteristics. The results reveal that the coupling length between dual cores is as small as millimeter order of magnitude due to the wide silica bridge of energy transfer, and the SPSM coupling region can be tailored to cover the communication windows of 1.3 or 1.55  μm with optimized design parameters. Moreover, the confinement loss of x polarization is 3 orders of magnitude larger than that of y polarization in single polarization range. The proposed SPSM PCF coupler may find application in polarization-sensitive systems.
DOI: 10.1364/josa.55.001205
发表时间: 1965-01-01
影响因子: --
作者:
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