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Proceedings Paper

High-performance quantum cascade lasers: physics and applications
Author(s): Jerome Faist; Daniel Hofstetter; Mattias Beck; Thierry Aellen; Michel Rochat; Stephane Blaser
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Paper Abstract

Physics and applications of recent quantum cascade laser active region designs are discussed. Specifically, the use of bound-to-continuum and two-phonon resonance active regions for high temperature, high duty cycle operation is reviewed. Threshold current densities as low as 3kA/cm2 at T=300K, operation with a peak power of 90mW at 425K, and single mode, high power operation up to temperatures above 330K at (lambda) approximately equals 16micrometers are demonstrated. QC lasers able to operate at high duty cycles (50%) on a Peltier cooler were used in a demonstration of a 300MHz free space optical link between two buildings separated by 350m.

Paper Details

Date Published: 22 May 2002
PDF: 12 pages
Proc. SPIE 4651, Novel In-Plane Semiconductor Lasers, (22 May 2002); doi: 10.1117/12.467957
Show Author Affiliations
Jerome Faist, Univ. of Neuchatel (Switzerland)
Daniel Hofstetter, Univ. of Neuchatel (Switzerland)
Mattias Beck, Univ. of Neuchatel (Switzerland)
Thierry Aellen, Univ. of Neuchatel (Switzerland)
Michel Rochat, Univ. of Neuchatel (Switzerland)
Stephane Blaser, Univ. of Neuchatel (Switzerland)


Published in SPIE Proceedings Vol. 4651:
Novel In-Plane Semiconductor Lasers
Jerry R. Meyer; Claire F. Gmachl, Editor(s)

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