文章基本信息

标题：A Rigorous 2D Approximation Technique for 3D Waveguide Structures for BPM Calculations
本地全文：下载
作者：Han, Young-Tak ; Shin, Jung-Uk ; Kim, Duk-Jun 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2003
卷号：25
期号：6
页码：535-535
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：We propose a rigorous 2D approximation technique for the 3D waveguide structures; it can minimize the well-known approximation errors of the commonly used effective index method. The main concept of the proposed technique is to compensate for the effective cladding index in the equivalent slab model of the original channel waveguide from the modal effective index calculated by the nonuniform 2D finite difference method. With simulations, we used the proposed technique to calculate the coupling characteristics of a directional coupler by the 2D beam propagation method, and the results were almost exactly the same as the results calculated by the 3D beam propagation method.
关键词：effective index method;beam propagation method;directional coupler;modified EIM;BPM