Title :
Wide-angle finite-element beam propagation method using Pade approximation
Author :
Mitomi, O. ; Kasaya, K.
Author_Institution :
NTT Opto-Electron. Labs., Kanagawa, Japan
fDate :
8/14/1997 12:00:00 AM
Abstract :
A wide-angle beam propagation method using a finite-element scheme is presented. The method is based on Pade approximations expressed with polynomial matrix functions. Tilted-waveguide propagation characteristics are calculated, and an analysis for a steeper waveguide is shown to be allowed when proposed higher-order Pade approximations are used
Keywords :
approximation theory; finite element analysis; optical waveguide theory; polynomial matrices; Pade approximation; finite-element method; polynomial matrix functions; tilted-waveguide propagation characteristics; wide-angle beam propagation method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970958
