Full-Vectorial Mode Solver for Bending Waveguides Using Multidomain Pseudospectral Method in a Cylindrical Coordinate System

Author

Xiao, Jinbiao ; Ma, Haibo ; Bai, Ningfeng ; Liu, Xu ; Sun, Xiaohan

Author_Institution

Dept. of Electron. Eng., Southeast Univ., Nanjing, China

Volume

21

Issue

23

fYear

2009

Firstpage

1779

Lastpage

1781

Abstract

A full-vectorial mode solver for bending waveguides using a spectral collocation method in a local cylindrical coordinate system is described. The perfectly matched layers´ absorption boundary conditions are incorporated into the present method for effectively demonstrating the leaky nature of the bending waveguides. The domain decomposition technique is utilized for improving the computational accuracy and stability. A bending rib waveguide with high index contrast is considered as a numerical example to validate the established method.

Keywords

eigenvalues and eigenfunctions; modal analysis; optical waveguide theory; rib waveguides; spectral analysis; waveguide discontinuities; bending rib waveguide; bending waveguides; computational accuracy; computational stability; cylindrical coordinate system; domain decomposition technique; eigenvalue equation; full-vectorial mode solver; high index contrast waveguide; multidomain pseudospectral method; perfectly matched layers; spectral collocation method; Domain decomposition; full-vectorial mode solver; optical dielectric waveguide bends; perfectly matched layers (PMLs); pseudospectral method;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2009.2033561

Filename

5282609