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Proceedings Paper

Continuous-wave operation of quantum cascade lasers above room temperature
Author(s): Mattias Beck; Daniel Hofstetter; Thierry Aellen; Richard Maulini; Jerome Faist; Emilio Gini
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Paper Abstract

Continuous wave operation of quantum cascade lasers is reported up to a temperature of 311 K. Fabry-Perot and DFB devices were fabricated as buried heterostructure lasers with high-reflection facet coatings. Junction-down mounted FP-lasers emitted up to 17 mW and 3 mW of optical power per facet under continuous wave operation at 292 K and 311 K, respectively. The DFB-devices could be operated up to 253 K on a thermoelectric cooler at an emission frequency of 1114 cm-1 with a side mode suppression rate better than 30 dB. Grating-coupled external cavity quantum cascade lasers based on a bound-to-continuum active region featuring a broad gain spectrum demonstrated frequency tuning of ~10% from 1036 cm-1 to 1142 cm-1 with average output power between 0.15 and 0.85 mW under pulsed operation at room temperature.

Paper Details

Date Published: 23 September 2002
PDF: 7 pages
Proc. SPIE 4817, Diode Lasers and Applications in Atmospheric Sensing, (23 September 2002); doi: 10.1117/12.452080
Show Author Affiliations
Mattias Beck, Univ. loj Neuchatel (Switzerland)
Daniel Hofstetter, Univ. of Neuchatel (Switzerland)
Thierry Aellen, Univ. of Neuchatel (Switzerland)
Richard Maulini, Univ. of Neuchatel (Switzerland)
Jerome Faist, Univ. of Neuchatel (Switzerland)
Emilio Gini, Swiss Federal Institute of Technology Zurich (Switzerland)

Published in SPIE Proceedings Vol. 4817:
Diode Lasers and Applications in Atmospheric Sensing
Alan Fried, Editor(s)

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