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- Title
Continuous wave operation of a mid-infrared semiconductor laser at room temperature.
- Authors
Beck, Mattias; Hofstetter, Daniel; Aellen, Thierry; Faist, Jérôme; Oesterle, Ursula; Ilegems, Marc; Gini, Emilio; Melchior, Hans
- Abstract
Continuous wave operation of quantum cascade lasers is reported up to a temperature of 312 kelvin. The devices were fabricated as buried heterostructure lasers with high-reflection coatings on both laser facets, resulting in continuous wave operation with optical output power ranging from 17 milliwatts at 292 kelvin to 3 milliwatts at 312 kelvin, at an emission wavelength of 9.1 micrometers. The results demonstrate the potential of quantum cascade lasers as continuous wave mid-infrared light sources for high-resolution spectroscopy, chemical sensing applications, and free-space optical communication systems.
- Publication
Science (New York, N.Y.), 2002, Vol 295, Issue 5553, p301
- ISSN
1095-9203
- Publication type
Journal Article
- DOI
10.1126/science.1066408