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22 April 2008 High-pulse-energy 8 μm laser source based on optical parametric amplification in ZnGeP2
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Abstract
Nonlinear optical conversion of 1.064 μm pulses from a Q-switched Nd:YAG laser to the mid-infrared is demonstrated experimentally. The setup is based on a two-stage master-oscillator/power-amplifier (MOPA) design with a KTiOPO4 based MOPA in the first stage and a KTiOAsO4/ZnGeP2 based MOPA in the second stage. We obtain more than 8 mJ at 8 μm with a beam quality factor M2 ≈ 3.6.
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M. W. Haakestad, G. Arisholm, E. Lippert, S. Nicolas, G. Rustad, and K. Stenersen "High-pulse-energy 8 μm laser source based on optical parametric amplification in ZnGeP2", Proc. SPIE 6998, Solid State Lasers and Amplifiers III, 699812 (22 April 2008); doi: 10.1117/12.779484; https://doi.org/10.1117/12.779484
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