Finite-element full-vectorial propagation analysis for three-dimensional z-varying optical waveguides

Author

Montanari, Ettore ; Selleri, Stefano ; Vincetti, Luca ; Zoboli, Maurizio

Author_Institution

Dipt. di Ingegneria dell´´Inf., Parma Univ., Italy

Volume

16

Issue

4

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

703

Lastpage

714

Abstract

A finite-element-based full-vectorial beam propagation method (BPM) for the analysis of the electromagnetic field evolution in three-dimensional (3-D) dielectric waveguides is presented. The approach has been derived in order to be suitable for the numerical discretization through finite elements and to fully account for the vectorial nature of the electromagnetic field. To this aim the problem related to the permittivity derivative at dielectric interface has been addressed and overcome. The advantages and the potentialities of the finite elements usage are discussed. The precision and the correctness of the proposed approach is demonstrated through numerical examples. Typical integrated optics structures, as a tapered waveguide and a Y-junction, are analyzed to assess the applicability of the method

Keywords

electromagnetic field theory; finite element analysis; integrated optics; optical waveguide theory; optical waveguides; vectors; 3D dielectric waveguides; 3D z-varying optical waveguides; Y-junction; dielectric interface; electromagnetic field; electromagnetic field evolution; finite elements; finite elements usage; finite-element full-vectorial propagation analysis; integrated optics structures; numerical discretization; numerical examples; permittivity derivative; vectorial nature; Beams; Dielectrics; Electromagnetic analysis; Electromagnetic fields; Electromagnetic propagation; Electromagnetic waveguides; Finite element methods; Integrated optics; Optical waveguides; Permittivity;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.664086

Filename

664086