Title :
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
fDate :
10/1/1993 12:00:00 AM
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 EZ and HZ 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;
Journal_Title :
Lightwave Technology, Journal of
