Title :
Finite element analysis for lossy optical waveguides by using perturbation techniques
Author :
Themistos, C. ; Rahman, B.M.A. ; Grattan, K.T.V.
Author_Institution :
Dept. of Electr. Electron. & Inf. Eng., City Univ., London, UK
fDate :
4/1/1994 12:00:00 AM
Abstract :
A finite element analysis, based on the variational procedure, is used to find the modal loss or gain for both the TE and TM modes with the application of the perturbation technique. Results for the modal gain for the buried heterostructure diode laser are presented, as well as the loss estimation for both the TE and TM modes for the asymmetrical multilayer metal-clad planar optical waveguides. The results obtained agree very well, for a wide range of loss/gain values, with the previously published work using alternative approaches.<>
Keywords :
finite element analysis; integrated optics; optical waveguide theory; optical waveguides; perturbation theory; TE modes; TM modes; asymmetrical multilayer metal-clad planar optical waveguides; buried heterostructure diode laser; finite element analysis; loss estimation; lossy optical waveguides; modal gain; modal loss; perturbation techniques; variational procedure; Eigenvalues and eigenfunctions; Equations; Finite element methods; Nonlinear optics; Optical losses; Optical refraction; Optical variables control; Optical waveguides; Perturbation methods; Tellurium;
Journal_Title :
Photonics Technology Letters, IEEE
