Full-vectorial analysis of bending waveguides using finite difference method based on H-fields in cylindrical coordinate systems

被引：4

作者：

Xiao, Jinbiao ^{[1
]}

Ma, Haibo ^{[1
]}

Bai, Ningfeng ^{[1
]}

Liu, Xu ^{[1
]}

Sun, Xiaohan ^{[1
]}

机构：

[1] Southeast Univ, Dept Elect Engn, Lab Photon & Opt Commun, Nanjing 210096, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 13期

基金：

高等学校博士学科点专项科研基金;

关键词：

EIGENMODE SOLVER; LINES;

D O I：

10.1016/j.optcom.2009.03.040

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A full-vectorial (FV) analysis of optical dielectric waveguide bends by using finite difference (FD) method in terms of magnetic field components is developed in a local cylindrical coordinate system. The perfectly matched layer absorbing boundary conditions via the complex coordinate stretching technique are incorporated into the FV wave equations for effectively demonstrating the leaky nature of waveguide bends, and a six-point FD scheme is constructed to approximate the cross-coupling terms for improving the convergent behavior. The leaky modes of a typical rib waveguide bend are calculated and the complex propagation constants and the field patterns for TE- and TM-like modes are obtained. Solutions are good agreement with those from the film mode matching method, which shows the validity and utility of the established method. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2511 / 2515

页数：5