Title :
Analysis of stripe multilayer waveguides with effective index and finite element methods
Author :
Zhao, An Ping ; Cvetkovic, Srba R. ; Punjani, Minaz
Author_Institution :
Dept. of Electron. & Electr. Eng., Surrey Univ., Guildford, UK
fDate :
3/1/1992 12:00:00 AM
Abstract :
An algorithm for a fast and accurate analysis of stripe multiple quantum well (MQW) waveguides is presented. The technique is based on the combination of effective index and finite element methods. The stripe MQW structure is replaced by an equivalent planar waveguide, using the effective index method to derive the (refractive index) profile of the planar guide from the original problem. The propagation constants and field intensity profiles of EmnX and EmnY modes for the equivalent structure are then calculated with the one-dimensional finite element method. The results obtained with this technique are presented for both symmetric and asymmetric stripe MQW structures with an arbitrary number of wells. Propagation characteristics obtained for a six-well MQW waveguide are in good agreement with those evaluated (for comparison) using full two-dimensional finite element analysis
Keywords :
finite element analysis; integrated optics; optical waveguide theory; refractive index; semiconductor quantum wells; algorithm; asymmetric stripe MQW structures; effective index method; equivalent planar waveguide; field intensity profiles; integrated optical waveguides; one-dimensional finite element method; propagation constants; refractive index; stripe multilayer waveguides; stripe multiple quantum well waveguides; Algorithm design and analysis; Finite element methods; Nonhomogeneous media; Optical filters; Optical propagation; Optical refraction; Optical variables control; Optical waveguides; Planar waveguides; Refractive index;
Journal_Title :
Quantum Electronics, IEEE Journal of
