Design and performance optimization of optically-pumped mid-infrared intersubband semiconductor lasers

Jin Wang*, J. P. Leburton, F. H. Julien, A. Sa'ar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

We show that self-consistent simulations of asymmetric coupled double-quantum wells (ACQW) can be used efficiently to increase significantly the optical performances of optically-pumped mid-infrared intersubband semiconductor lasers by increasing the electron concentration in the quantum well. Our calculations, which account for screening effect and degenerate statistics, show optical gain in excess of 100/cm for pumping intensity of 39 kW/cm2 can be achieved. Owing to hot electron effects, the stimulated gain at 77 K is insensitive to the phonon resonance for pumping intensities larger than 400 kW/cm2.

Original languageAmerican English
Pages (from-to)1001-1003
Number of pages3
JournalIEEE Photonics Technology Letters
Volume8
Issue number8
DOIs
StatePublished - Aug 1996

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