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Mid-infrared semiconductor lasers for power projection and sensing
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Paper Abstract

The recent break-through in semiconductor laser-module technology in the infrared region between 2 μm and 10 μm opens up new windows of opportunity for active sensing, imaging, and modulated power projection. Optically pumped semiconductor disk lasers and quantum cascade lasers cover the infrared spectral range continuously, either with tuneable small bandwidths for active spectral sensing or with broad bandwidth, high power (Watt level), and good diffraction properties (M2<2) for modulated power projection and (3D) imaging. This paper reviews the physics of infrared semiconductor disk lasers and quantum cascade lasers, explains the challenges of the module technology (the next higher integration level after chip technology) and outlines several security and defence related issues for future applications.

Paper Details

Date Published: 12 October 2010
PDF: 12 pages
Proc. SPIE 7836, Technologies for Optical Countermeasures VII, 78360Q (12 October 2010); doi: 10.1117/12.869850
Show Author Affiliations
Hans Dieter Tholl, Diehl BGT Defence GmbH & Co. KG (Germany)
Joachim Wagner, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Marcel Rattunde, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Stefan Hugger, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Frank Fuchs, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)

Published in SPIE Proceedings Vol. 7836:
Technologies for Optical Countermeasures VII
David H. Titterton; Mark A. Richardson, Editor(s)

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