Title :
Improved full-vectorial beam propagation method with high accuracy for arbitrary optical waveguides
Author :
He, Yongzhi ; Shi, Frank G.
Author_Institution :
Henry Samueli Sch. of Eng., Univ. of California, Irvine, CA, USA
Abstract :
An improved finite-difference (FD) full-vectorial beam propagation method is introduced for arbitrary optical waveguides with a dramatic improvement in accuracy. This method is developed based on the generalized Douglas scheme and a novel FD formula for the cross-coupling terms which, expressed in explicit form, is independent of specific types of waveguides. The present method is demonstrated for a strongly guiding rib waveguide.
Keywords :
finite difference methods; optical waveguide theory; rib waveguides; vectors; arbitrary optical waveguides; cross-coupling terms; finite-difference full-vectorial beam propagation method; generalized Douglas scheme; high accuracy; strongly guiding rib waveguide; Convergence of numerical methods; Equations; Finite difference methods; Finite wordlength effects; Numerical simulation; Optical propagation; Optical waveguides; Packaging; Stability;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.817985
