Title :
The influence of well shape on the propagation characteristics of multiquantum well waveguides
Author :
Weiss, B.L. ; Zhao, A.P.
Author_Institution :
Dept. of Electron. & Electr. Eng., Surrey Univ., Guildford, UK
Abstract :
The finite-element technique has been used to determine the effects of the well shape on the propagation characteristics of symmetric multiple-quantum-well (MQW) waveguides. An error function was used to describe the modified refractive index profile modification due to thermally induced interdiffusion of the well-barrier layers. The results show that the number of modes and their propagation constants vary with the extent of the interdiffusion.<>
Keywords :
finite element analysis; optical waveguide theory; refractive index; semiconductor quantum wells; error function; finite-element technique; modified refractive index profile modification; multiquantum well waveguides; propagation characteristics; propagation constants; symmetric MQW waveguides; thermally induced interdiffusion; well shape; well-barrier layers; Birefringence; Finite element methods; Laser modes; Optical devices; Optical waveguides; Propagation constant; Quantum well devices; Refractive index; Shape;
Journal_Title :
Photonics Technology Letters, IEEE
