Title :
Surface-grating coupled quantum cascade laser structures
Author :
Finger, N. ; Schrenk, W. ; Gornik, E.
Author_Institution :
Solid State Electron., Tech. Univ. Vienna, Austria
Abstract :
Summary form only. We present an analysis of quantum cascade laser (QCL) structures incorporating metallized surface-relief gratings. The numerical approach is based on a rigorous Floquet-Bloch theory allowing an accurate description of the electromagnetic field in these waveguide structures with "strong" gratings. Starting from rigorously computed on-resonant Floquet-Bloch solutions a coupled-mode theory has been derived, combining both a high degree of accuracy and versatility for the modeling of first-order and second-order surface-emitting distributed-feedback (DFB) QCLs.
Keywords :
III-V semiconductors; aluminium compounds; coupled mode analysis; diffraction gratings; distributed feedback lasers; gallium arsenide; laser theory; quantum well lasers; waveguide lasers; GaAs-AlGaAs; GaAs-AlGaAs surface-grating coupled quantum cascade laser structures; coupled-mode theory; electromagnetic field; first-order surface-emitting DFB lasers; metallized surface-relief gratings; rigorous Floquet-Bloch theory; rigorously computed on-resonant Floquet-Bloch solutions; second-order surface-emitting DFB lasers; waveguide structures; Etching; Fingers; Gold; Gratings; Optical coupling; Optical feedback; Optical surface waves; Optical waveguides; Quantum cascade lasers; Surface emitting lasers;
Conference_Titel :
Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on
Conference_Location :
Nice
Print_ISBN :
0-7803-6319-1
DOI :
10.1109/CLEOE.2000.909820
