Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2033561
