Analysis of optical waveguide discontinuities using the Pad? approximants
Journal
IEEE Photonics Technology Letters
Journal Volume
9
Journal Issue
7
Pages
964-966
Date Issued
1997
Author(s)
Chang, H.-C.
Abstract
We propose a novel method to solve efficiently the dielectric waveguide discontinuity problems. The reflection and transmission fields are expressed in terms of the characteristic matrices and the incident field. Instead of solving eigen systems, the square roots of the matrices are approximated by the Padé approximants. Therefore, the proposed method requires much less computation time and memory. It can also solve discontinuity problems with arbitrary input field and arbitrary refractive index distributions.
Type
journal article