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Issue Eur. Phys. J. Appl. Phys.
Volume 28, Number 2, November 2004
Page(s) 153 - 157
Section Microelectronics and Optoelectronics
DOI 10.1051/epjap:2004189
Published online 03 November 2004

Eur. Phys. J. Appl. Phys. 28, 153-157 (2004)
DOI: 10.1051/epjap:2004189

Modelling of twisted optical waveguides with edge elements

A. Nicolet1, F. Zolla2 and S. Guenneau3

1  Institut Fresnel, UMR 6133, Université Aix-Marseille III, case 162, 13397 Marseille Cedex 20, France
2  Institut Fresnel, UMR 6133, Université Aix-Marseille I, case 162, 13397 Marseille Cedex 20, France
3  Blackett Laboratory, Imperial College London, London SW7 2EZ, UK

s.r.l.guenneau@imperial.ac.uk

(Received: 1st December 2003 / Received in final form: 28 June 2004 / Accepted: 4 August 2004 / Published online: 3 November 2004 )

Abstract
We present the modelling of twisted electromagnetic waveguides using helicoid coordinates. This amounts to introducing equivalent inhomogeneous anisotropic materials which are however taken into account easily by the finite element method. An interesting property of such helicoid coordinates is to preserve the intrinsically two-dimensional nature of the problem.

PACS
41.20.Jb - Electromagnetic wave propagation; radiowave propagation.
02.70.-Dh - Finite-element and Galerkin methods.

© EDP Sciences 2004


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