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Proceedings Paper

Multimode regimes and instabilities in quantum-cascade lasers
Author(s): Franz X. Kärtner; Ariel Gordon
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Paper Abstract

A theoretical study of multimode operation regimes in quantum cascade lasers (QCLs) is presented. It is shown that the fast gain recovery of QCLs promotes two multimode regimes: One is spatial hole burning (SHB), and the other one is related to the Risken-Nummedal-Graham-Haken (RNGH) instability predicted in the sixties. A model that can account for coherent phenomena, a saturable absorber and SHB is developed and studied in detail both analytically and numerically.

Paper Details

Date Published: 29 January 2008
PDF: 12 pages
Proc. SPIE 6909, Novel In-Plane Semiconductor Lasers VII, 690914 (29 January 2008); doi: 10.1117/12.768142
Show Author Affiliations
Franz X. Kärtner, Massachusetts Institute of Technology (United States)
Ariel Gordon, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 6909:
Novel In-Plane Semiconductor Lasers VII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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