Finite element analysis of anisotropic optical waveguide with arbitrary index profile

Author

Franco, Marcos A R ; Passaro, Angelo ; Cardoso, Jose R. ; Machado, Jose M.

Author_Institution

Centro Tecnico Aerospacial, CEP, Sao Paulo, Brazil

Volume

35

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

1546

Lastpage

1549

Abstract

This work presents the application of a scalar finite element formulation for E^x (TE-like) modes in anisotropic planar and channel waveguides with diagonal permittivity tensor, diffused in both transversal directions. This extended formulation considers explicitly both the variations of the refractive index and their spatial derivatives inside of each finite element. Dispersion curves for E^x modes in planar and channel waveguides are shown, and the results compared with solutions obtained by other formulations

Keywords

anisotropic media; finite element analysis; lithium compounds; optical planar waveguides; optical waveguide theory; permittivity; refractive index; E^x modes; LiNbO₃; LiNbO₃ waveguides; LiNbO₃:Ti; anisotropic diffused channel waveguide; anisotropic media; anisotropic optical waveguide; anisotropic planar waveguides; arbitrary index profile; channel waveguides; diagonal permittivity tensor; dispersion curves; extended formulation; finite element; finite element analysis; homogenous isotropic channel waveguide; isotropic diffused channel waveguide; nonhomogeneously loaded waveguides; optical strip waveguides; planar diffused isotropic waveguide; refractive index; spatial derivatives; transversal directions; Anisotropic magnetoresistance; Finite element methods; Geometrical optics; Optical planar waveguides; Optical refraction; Optical variables control; Optical waveguides; Permittivity; Planar waveguides; Tensile stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.767263

Filename

767263