High-power, high-quality ZGP OPO pumped by a Tm,Ho:GdVO4 laser

We report a ZGP OPO system capable of producing >6 W at a signal wavelength of 3.80 μm and an idler wavelength of 4.45 μm. The pumping source is the Tm,Ho:GdVO4 laser operated at 2.049 μm with an M2 of 1.07. The ZGP OPO generated a total combined output power of 6.1 W at signal wavelength and idler wavelength under pumping power of 18.3 W, and an M2 of 1.7 for OPO output was obtained.

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