Title :
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
fDate :
5/1/1999 12:00:00 AM
Abstract :
This work presents the application of a scalar finite element formulation for Ex (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 Ex 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; Ex 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;
Journal_Title :
Magnetics, IEEE Transactions on
