Midinfrared Optical Parametric Amplifier With 6.4–11 $\mu \text{m}$ Range Based on BaGa4Se7


A widely tunable picosecond midinfrared (MIR) optical parametric amplifier (OPA) with wavelength ranging from 6.4 to 11 μm based on the BaGa<sub>4</sub>Se<sub>7</sub> crystal was demonstrated. The MIR OPA was pumped by a 30 ps 1064-nm Nd:YAG laser and injected by a KTiOPO<sub>4</sub> (KTP)-based narrow-bandwidth widely tunable near-infrared seed. The wide… (More)

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