Efficient all solid-state dual-wavelength Nd:LuVO4 laser at 916 and 1343 nm and sum-frequency mixing for an emission at 545 nm

We report on the efficient continuous-wave (CW) dual-wavelength operation of a Nd:LuVO₄ laser at 916 and 1343 nm. An output power of 2.15 W for the dual-wavelength was achieved at the incident pump power of 18.2 W. Intracavity sum-frequency mixing at 916 and 1343 nm was then realized in a LBO crystal to reach the yellow-green range. A maximum output power of 523 mW in the yellow-green spectral range at 545 nm has been achieved. The yellow-green output stability is better than 3.5%. The yellow-green beam quality M ² value are about 1.31 and 1.18 in both horizontal and vertical dimensions, respectively.