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

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5 Author(s)
Mann, Ch. ; Fraunhofer-Inst. fur Angewandte Festkorperphysik, Freiburg, Germany ; Yang, Q.K. ; Fuchs, F. ; Bronner, W.
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A report is presented on the continuous-wave operation of λ≃5 μm GaInAs/AlInAs/InP-based quantum cascade lasers up to a heatsink temperature of 222 K (-51°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.

Published in:

Electronics Letters  (Volume:39 ,  Issue: 22 )