Abstract
We report for the first time a continuous-wave (CW) yellow laser emission by sum-frequency mixing in Nd:YAG crystal. Using type-I critical phase-matching LBO crystal, a yellow laser at 572 nm is obtained by 1444 and 946 nm intracavity sum-frequency mixing. The maximum laser output power of 178 mW is obtained when an incident pump laser of 18.2 W is used. At the output power level of 178 mW, the output stability is better than 4.2%.
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