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High power and efficient long wave IR ZnGeP2 parametric oscillator
Espen Lippert1, Gunnar Rustad, Gunnar Arisholm
1FFI Norwegian Defence Research Establishment, Kjeller, Norway. Espen.Lippert@ffi.no
Optics Express
|September 6, 2008
Abstract:
A high power, efficient, and tunable laser source in the 8-10 microm range, based on a ZnGeP(2) optical parametric oscillator (OPO) pumped by a hybrid 2.1 microm laser is demonstrated. The hybrid laser consists of a Q-switched Ho:YAG laser pumped by a 15 W CW thulium fiber laser. With 8.9 W of 2.1 microm pump power we obtained 0.95 W at 8 microm with an M(2)-value of 2.7 from an OPO with two walk-off compensating crystals.

