Abstract
Through reasonable coating design to suppress the 1064 nm strongest emission line as well as the 1318.8 nm one, a 1338 nm high-power Nd:YAG quasi-continuous wave (QCW) laser pumped with a Kr lamp has been successfully developed. As high as 102 W of average output power at the 1338 nm single wavelength has been obtained with the overall and slope efficiencies of 4.6% and 6.3%, respectively, when the average pump power is 2200 W. Its threshold power is about 400 W.
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