Abstract
A high efficiency and high peak power picosecond (ps) mid-infrared optical parametric amplifier with a new nonlinear crystal pumped by a 30 ps 1064 nm Nd:YAG laser is demonstrated for the first time. The maximum photon conversion efficiency of 56% from 1064 nm to 3.9 μm idler has been achieved at the pump energy of . A maximum idler output of 830 μJ at 3.9 μm with peak power of was obtained at pump energy of . Moreover, a 3–5 μm idler tuning range was demonstrated, with output energies of at 5 μm and up to 1 mJ at 3 μm at pump energy.
© 2013 Optical Society of America
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