10 October 2007 High power and efficient far infrared ZnGeP2-based optical parametric oscillator
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Abstract
A high power, efficient, and tunable laser source in the 8-10 µm wavelength range, based on a ZnGeP2 (ZGP) optical parametric oscillator (OPO) pumped by a hybrid 2-micron-laser, is demonstrated. Tuning to 9.8 μm was achieved, and with 8.9 W of 2.1 µm pump power we obtained 0.95 W at 8 μm with an M2 value of 2.7 from an OPO with two walk-off compensating crystals. More than 40% quantum efficiency was achieved.
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Espen Lippert, Gunnar Rustad, Knut Stenersen, "High power and efficient far infrared ZnGeP2-based optical parametric oscillator", Proc. SPIE 6738, Technologies for Optical Countermeasures IV, 67380D (10 October 2007); doi: 10.1117/12.737714; https://doi.org/10.1117/12.737714
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