Title :
Numerical modeling of nonlinear TE waves in multiple-quantum-well waveguides
Author :
Zhao, An Ping ; Cvetkovic, Srba R.
Author_Institution :
Dept. of Electron. & Electr. Eng., Surrey Univ., Guildford, UK
fDate :
6/1/1992 12:00:00 AM
Abstract :
A computer-aided technique, based on the finite element method, has been developed for analyzing intensity-dependent properties of TE waves guided by multiple-quantum-well (MQW) waveguides with arbitrary nonlinear media. Self-consistent solutions are obtained by a simple iterative procedure. The numerical results for TE power-dependent modes are presented for waveguides with either linear or nonlinear cladding regions. They reveal that, for values of total optical power above a certain threshold, the effect of nonlinear cladding regions on the propagation characteristics can be ignored. The power-dependent behavior of a non-Kerr-like case is also examined.<>
Keywords :
finite element analysis; integrated optics; iterative methods; nonlinear optics; optical waveguide theory; semiconductor quantum wells; MQW waveguides; TE power-dependent modes; computer-aided technique; finite element method; intensity-dependent properties; linear cladding region; multiple-quantum-well waveguides; nonKerr like case; nonlinear TE waves; nonlinear cladding regions; nonlinear media; numerical modelling; propagation characteristics; self consistent solutions; simple iterative procedure; total optical power; Finite element methods; Nonhomogeneous media; Nonlinear optics; Numerical models; Optical refraction; Optical waveguides; Power semiconductor switches; Quantum well devices; Semiconductor laser arrays; Tellurium;
Journal_Title :
Photonics Technology Letters, IEEE
