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Proceedings Paper

Infrared semiconductor laser modules for DIRCM applications
Author(s): J. Wagner; S. Hugger; B. Rösener; F. Fuchs; M. Rattunde; Q. Yang; W. Bronner; R. Aidam; K. Köhler; M. Raab; E. Romasew; H. D. Tholl
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Paper Abstract

We report on the concept, realization and performance data of infrared semiconductor laser modules serving as compact and robust laser sources for a Directed Infrared Countermeasures (DIRCM) system. While the 2-2.5 μm atmospheric transmission window is covered by a GaSb-based optically pumped semiconductor disk laser (OPSDL), delivering a continuous-wave (cw) or temporally modulated output of ≥ 1 W with a high beam quality (M2 < 3), an external cavity (EC) quantum cascade (QC) laser module is used to cover the 4.5-5 μm spectral range. The EC-QC laser concept allows efficient spectral beam combining of the output of several QC laser located side-by-side on the same semiconductor chip, while preserving the high-quality output beam of a single emitter. Both the OPSDL and the EC-QC laser have been integrated into rugged laser modules, comprising also all necessary power supply and control electronics, ready for use in field trials.

Paper Details

Date Published: 25 September 2009
PDF: 7 pages
Proc. SPIE 7483, Technologies for Optical Countermeasures VI, 74830F (25 September 2009); doi: 10.1117/12.830342
Show Author Affiliations
J. Wagner, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
S. Hugger, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
B. Rösener, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
F. Fuchs, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
M. Rattunde, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
Q. Yang, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
W. Bronner, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
R. Aidam, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
K. Köhler, Fraunhofer-Institut für Angewandte Festkörperphysik (Germany)
M. Raab, Diehl BGT Defence (Germany)
E. Romasew, Diehl BGT Defence (Germany)
H. D. Tholl, Diehl BGT Defence (Germany)


Published in SPIE Proceedings Vol. 7483:
Technologies for Optical Countermeasures VI
David H. Titterton; Mark A. Richardson, Editor(s)

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