Patent ID: 8755416

Claim:
A laser, comprising: a) a semiconductor laser stack group; b) a beam compositor; c) a pump beam collimator; d) a thin-disk laser crystal; e) a first and second parabolic reflectors with the same facial contour function; f) a corrective reflector; g) an output mirror; and h) a jet-flow impact cooling system for cooling the thin-disk laser crystal; wherein: the thin-disk laser crystal and the output mirror form a laser resonant cavity; the first and second parabolic reflectors are placed with the same conjugated axis and one of the reflectors has a vertex on a focus of the other; the thin-disk laser crystal is welded, pasted, or cramped to the vertex of the first parabolic reflector; the thin-disk laser crystal is vertical to an optical axis of the first parabolic reflector; the corrective reflector is fixed on the vertex of the second parabolic reflector; an angle formed between the corrective reflector and an optical axis of the second parabolic reflector is 1-5 degrees; a bar entrance of pump light is fixed on the first parabolic reflector, and a geometrical center of the bar entrance drifts along a fast axis relative to the thin-disk laser crystal; the pump light produced by the semiconductor laser stack group is composited by the beam compositor, collimated by the pump light collimator, and enters a multi-pumping focus cavity through the bar entrance on the first parabolic reflector; the multi-pumping focus cavity is formed by the first parabolic reflector, second parabolic reflector, thin-disk laser crystal, and corrective reflector; and within the multi-pumping focus cavity, the pump light is focused, collimated, and deflected to converge on the thin-disk laser crystal, and the laser resonant cavity produces and outputs a laser.