Laser source with high pulse energy at 3-5 µm and 8-12 µm based on nonlinear conversion in ZnGeP2

Espen Lippert; Helge Fonnum; Magnus W. Haakestad

doi:10.1117/12.2067046

7 October 2014 Laser source with high pulse energy at 3-5 μm and 8-12 μm based on nonlinear conversion in ZnGeP₂

Espen Lippert, Helge Fonnum, Magnus W. Haakestad

Proceedings Volume 9251, Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems; 92510D (2014) https://doi.org/10.1117/12.2067046
Event: SPIE Security + Defence, 2014, Amsterdam, Netherlands

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.

Citation Download Citation

Espen Lippert, Helge Fonnum, and Magnus W. Haakestad "Laser source with high pulse energy at 3-5 μm and 8-12 μm based on nonlinear conversion in ZnGeP₂", Proc. SPIE 9251, Technologies for Optical Countermeasures XI; and High-Power Lasers 2014: Technology and Systems, 92510D (7 October 2014); https://doi.org/10.1117/12.2067046

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