A 41-W ZnGeP2 optical parametric oscillator pumped by a Q-switched Ho:YAG laser.
Opt Lett
; 39(23): 6589-92, 2014 Dec 01.
Article
em En
| MEDLINE
| ID: mdl-25490628
ABSTRACT
We reported a high-power ZnGeP2 (ZGP) optical parametric oscillator (OPO) pumped by a Q-switched HoYAG 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 M²<4.37. The continuous wave maximum average output power of the HoYAG laser was 128 W, corresponding to a slope efficiency of 65.8%.
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2014
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Article