Title :
Sensitivity analysis of the optical-waveguide properties of quantum cascade lasers
Author :
Spencer, P.S. ; Cheung, C.Y.L. ; Shore, K.A.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Univ. of Wales, Bangor, UK
fDate :
10/1/1997 12:00:00 AM
Abstract :
The effects of small perturbations in the widths and relative permittivity of the layers which form the multilayer waveguide of quantum cascade lasers are investigated. A full complex analysis which takes into account surface-plasmon-mode effects is undertaken. On the basis of the analysis, an optical-waveguide structure with improved modal discrimination is proposed
Keywords :
laser modes; laser theory; optical films; optical waveguides; semiconductor device models; semiconductor lasers; semiconductor superlattices; waveguide lasers; full complex analysis; improved modal discrimination; multilayer waveguide; optical-waveguide properties; optical-waveguide structure; quantum cascade lasers; relative permittivity; sensitivity analysis; small perturbations; surface-plasmon-mode effects;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19971411
