Analysis of dielectric guides by vector transverse magnetic field finite elements

Author

Abid, Zine-Eddine ; Johnson, Klein L. ; Gopinath, Anand

Author_Institution

Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA

Volume

11

Issue

10

fYear

1993

fDate

10/1/1993 12:00:00 AM

Firstpage

1545

Lastpage

1549

Abstract

A transverse magnetic field formulation of the finite-element method for solving lightwave propagation in optical guides has been implemented. The method requires that the interface boundary conditions for E_Z and H_Z be imposed, and this is performed by solving the vector wave equation in the null space of the boundary operator. Results for a three-layer ridge waveguide, even with a very coarse mesh, compare well with published values. In addition, results for a lossless MQW (multiple-quantum-well) ridge guide; again using a coarse mesh, show excellent agreement with results from a variable mesh semi-vectorial finite-difference program

Keywords

boundary-value problems; electromagnetic field theory; finite element analysis; optical waveguide theory; vectors; boundary operator; dielectric guides; finite-element method; interface boundary conditions; lightwave propagation; lossless MQW; multiple-quantum-well; null space; optical guides; three-layer ridge waveguide; variable mesh semi-vectorial finite-difference program; vector transverse magnetic field finite elements; vector wave equation; very coarse mesh; Boundary conditions; Dielectrics; Finite element methods; Magnetic analysis; Magnetic fields; Null space; Optical propagation; Optical waveguides; Partial differential equations; Quantum well devices;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.249894

Filename

249894