Multi-wavelength laser

The utility model discloses a multi-wavelength laser, which comprises an Nd: YAG laser module, a frequency multiplication module, a solid laser module and an output wavelength selection module, fundamental frequency light emitted by the Nd: YAG laser module is subjected to frequency multiplication by the frequency multiplication module and then is used as pump light; wherein the solid dye laser module comprises a resonant cavity and a solid dye block, and can generate at least two pulse lasers with different wavelengths after being acted by pump light; and the output wavelength selection module can select one of the following lasers with at least four different wavelengths to output. According to the utility model, laser output of four different wavelengths is realized on the same equipment, and theoretically, laser output of more wavelengths can be realized; the dye laser part adopts a solid dye laser and has the advantages of full curing, miniaturization, no toxicity, low cost, low maintenance cost and the