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Computing guided modes for an unbounded stratified medium in integrated optics

Published online by Cambridge University Press:  15 April 2002

Fabrice Mahé
Fabrice Mahé*
Affiliation:
IRMAR, Campus de Beaulieu, Université de Rennes 1, 35042 Rennes Cedex, France. (Fabrice.Mahe@univ-rennes1.fr)
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Abstract

We present a finite element method to compute guided modes in a stratified medium. The major difficulty to overcome is related to the unboundedness of the stratified medium. Our method is an alternative to the use of artificial boundary conditions and to the use of integral representation formulae. The domain is bounded in such a way we can write the solution on its lateral boundaries in terms of Fourier series. The series is then truncated for the computations over the bounded domain. The problem is scalar and 2-dimensional.

Keywords

Finite element methodexact boundary conditionunbounded domainstratified mediumguided modesopticsseries expansion.
Type
Research Article
Information
ESAIM: Mathematical Modelling and Numerical Analysis , Volume 35 , Issue 4 , July 2001 , pp. 799 - 824
Copyright
© EDP Sciences, SMAI, 2001

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