Method for calculating the properties of polarisation-maintaining 3D waveguides in very thin multilayered structures
Method for calculating the properties of polarisation-maintaining 3D waveguides in very thin multilayered structures
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计算极薄多层结构中保偏 3D 波导特性的方法
DOI：
10.1049/ip-opt:19990320
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发表时间：
1999
影响因子：
3
通讯作者：
P. Sewell
中科院分区：
文献类型：
--
作者：
J. Hsu;T. Anada;T. Hiraoka;T. Benson;P. Sewell
本文提出并分析了一种具有单模保偏波导或TE/TM模分束器功能的新型三维光波导。在所提出的光波导中，由具有不同折射率的两种介电材料组成的多层膜提供高度方向上的限制，以及TE和TM类模式之间的强模式分离，而带加载或肋型结构提供横向方向上的限制。一个完整的分析结构的基础上的模式匹配方法和一个熟悉的等效电路表示的三维波导。我们还讨论了几个基本属性的导波支持的建议波导的各种结构参数。
We propose and analyse a new optical three-dimensional waveguide having the function of a single-mode polarisation-maintaining waveguide or TE/TM mode splitter. In the optical waveguide proposed, a multilayer film composed of two dielectric materials with different refractive indices provides confinement in the height direction, and strong mode separation between TE- and TM-like modes, whilst a strip-loaded or rib-type structure provides confinement in the lateral direction. A full analysis of the structure based on a mode-matching method and a familiar equivalent circuit representation of 3D waveguides is presented. We also discuss several fundamental properties of the guided waves supported by the proposed waveguide for various structural parameters.