The invention discloses an up conversion intracavity frequency doubling ultraviolet laser device relating to the field of solid laser design, characterized by the solution of designing intracavity frequency doubling fundamental wave laser device. The invention uses infra-red light pump for the output of ultra-violet laser. The device comprises a laser medium, a non-linear optic crystal and a pair of laser cavity mirror, the advantage of the device is compact conformation, high stability and reliability. |