This paper presents the application of an immersed interface method in efficient modal analysis of dielectric chiral optical fibers. Under the easily implemented finite-difference framework, the second- and fourth-order accuracy formulations are developed, which in principle are applicable for automatically computing various types of modes in dielectric chiral optical fibers with an arbitrary, electromagnetic parameters piecewise constant profile. To validate the developed formulations, numerical examples are given for the guided, leaky, and surface modes in dielectric chiral step-profile and Bragg fibers.

中文翻译：

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基于沉浸界面方法的介电手性光纤的高效全矢量模态分析。

本文介绍了一种浸入式界面方法在介电手性光纤的高效模态分析中的应用。在易于实现的有限差分框架下，开发了二阶和四阶精度公式，这些公式原则上适用于自动计算具有任意电磁参数分段恒定分布的介电手性光纤中的各种模式。为了验证开发的配方，给出了介电手性阶跃剖面和布拉格纤维中的引导，泄漏和表面模式的数值示例。