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

A. Sa'ar, Y. Lavon, F. H. Julien, Z. Moussa, J. Wang, Jean-Pierre Leburton, R. Planel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 (US)
Title of host publicationConference on Lasers and Electro-Optics Europe - Technical Digest
Editors Anon
Number of pages1
StatePublished - Jan 1 1996
Externally publishedYes
EventProceedings of the 1996 Conference on Lasers and Electro-Optics Europe, CLEO/Europe - Hamburg, Ger
Duration: Sep 8 1996Sep 13 1996

Other

OtherProceedings of the 1996 Conference on Lasers and Electro-Optics Europe, CLEO/Europe
CityHamburg, Ger
Period9/8/969/13/96

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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