Title :
Finite-element solution of nonlinear TM waves in multiple-quantum-well waveguides
Author :
Zhao, An Ping ; Cvetkovic, Srba R.
Author_Institution :
Dept. of Electron. & Electr. Eng., Surrey Univ., Guildford, UK
Abstract :
Intensity-dependent characteristics for TM-polarized optical waves guided by multiple-quantum-well (MQW) waveguides with arbitrary nonlinear media are numerically analyzed by the finite element method. In this approach, self-consistent solutions are obtained through a simple iterative procedure. The power-dependent dispersion relations and magnetic-field (H/sub x/) as well as two electric-field (E/sub y/ and E/sub z/) profiles for nonlinear TM waves in MQW waveguides with three different nonlinear mechanisms are presented. It is shown that, for the waveguides with molecular orientational mechanism, a distinct power limiting action for nonlinear TM modes exists.<>
Keywords :
dispersion relations; finite element analysis; integrated optics; iterative methods; light polarisation; nonlinear optics; optical waveguide theory; semiconductor quantum wells; MQW waveguides; TM-polarized optical waves; arbitrary nonlinear media; distinct power limiting action; electric-field; finite element method; intensity dependent characteristics; magnetic-field; molecular orientational mechanism; multiple-quantum-well waveguides; nonlinear TM modes; nonlinear TM waves; nonlinear mechanisms; numerically analyzed; power-dependent dispersion relations; self-consistent solutions; simple iterative procedure; Dispersion; Finite element methods; Nonhomogeneous media; Nonlinear optical devices; Nonlinear optics; Optical bistability; Optical signal processing; Optical waveguides; Quantum well devices; Refractive index;
Journal_Title :
Photonics Technology Letters, IEEE
