Abstract
We reported a high-power (ZGP) optical parametric oscillator (OPO) pumped by a -switched Ho:YAG laser. The maximum output power of the ZGP OPO was 41.2 W at 107.0 W incident Ho pump power, corresponding to a slope efficiency of 44.6%. The ZGP OPO produced 16-ns mid-IR pulse laser in the 3.74–3.98 μm and 4.38–4.76 μm spectral regions simultaneously. The beam quality was measured to be . The continuous wave maximum average output power of the Ho:YAG laser was 128 W, corresponding to a slope efficiency of 65.8%.
© 2014 Optical Society of America
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