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Continuous-wave operation of 5 µm quantum cascade lasers with high-reflection coated facets

Dauerstrich-Betrieb von 5 µm Quantenkaskadenlasern mit hoch-reflektierend beschichteten Facetten
: Mann, C.; Yang, Q.K.; Fuchs, F.; Bronner, W.; Köhler, K.


Electronics Letters 39 (2003), No.22, pp.1590-1592
ISSN: 0013-5194
Journal Article
Fraunhofer IAF ()
quantum cascade laser; Quantenkaskadenlaser; continuous-wave operation; Dauerstrichbetrieb; high-reflection facet coating; hoch-reflektierende Facetten-Beschichtung

A report is presented on the continuous-wave operation of lambda approximately=5 mu m GaInAs/AlInAs/InP-based quantum cascade lasers up to a heatsink temperature of 222 K (-51 degrees C). The devices are mounted epi-side down with high-reflection coated facets. The dissipated electrical power at threshold amounts to only 2.3 W at 222 K.