Optically pumped mid-infrared intersubband emission and lasing in coupled quantum wells

A. Sa'ar*, Y. Lavon, F. H. Julien, Z. Moussa, J. Wang, J. P. Leburton, R. Planel

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Mid infrared semiconductor lasers that are based on population inversion between conduction subbands of a quantum well (QW) structure have attracted much attention recently. Recently demonstrated was the operation of the quantum cascade laser which is a unipolar intersubband injection laser. Another scheme to generate population inversion between conduction subbands is by optical pumping. This contribution summarizes the recent experimental and theoretical results including the observation of mid-infrared emission from a GaAs/AlGaAs coupled QWs (CQW) structure. Based on the results, it is predict that the structures could be very effective for achieving almost complete population inversion and large stimulated gain.

Original languageEnglish
Pages49
Number of pages1
StatePublished - 1996
EventProceedings of the 1996 Conference on Lasers and Electro-Optics Europe, CLEO/Europe - Hamburg, Ger
Duration: 8 Sep 199613 Sep 1996

Conference

ConferenceProceedings of the 1996 Conference on Lasers and Electro-Optics Europe, CLEO/Europe
CityHamburg, Ger
Period8/09/9613/09/96

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