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Proceedings Paper

Laser source with high pulse energy at 3-5 µm and 8-12 µm based on nonlinear conversion in ZnGeP2
Author(s): Espen Lippert; Helge Fonnum; Magnus W. Haakestad
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Paper Abstract

We present a high energy infrared laser source where a Tm:fiber laser is used to pump a high-energy 2-μm cryogenically cooled Ho:YLF laser. We have achieved 550 mJ of output energy at 2.05 μm, and through non-linear conversion in ZnGeP2 generated 200 mJ in the 3-5-μm range. Using a numerical simulation tool we have also investigated a setup which should generate more than 70 mJ in the 8-12-μm range. The conversion stage uses a master-oscillator-power-amplifier architecture to enable high conversion efficiency and good beam quality.

Paper Details

Date Published: 7 October 2014
PDF: 8 pages
Proc. SPIE 9251, Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems, 92510D (7 October 2014); doi: 10.1117/12.2067046
Show Author Affiliations
Espen Lippert, Norwegian Defence Research Establishment (Norway)
Helge Fonnum, Norwegian Defence Research Establishment (Norway)
Magnus W. Haakestad, Norwegian Defence Research Establishment (Norway)


Published in SPIE Proceedings Vol. 9251:
Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems
David H. Titterton; Willy L. Bohn; Harro Ackermann; Mark A. Richardson; Robert J. Grasso, Editor(s)

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