All solid state laser with quality laser beam

An all solid state laser was built, which is composed of a directional prism resonator, half-circular LD array to pump two Nd:YAG rods, Cr4+:YAG passive Q switched, and heat-conduct structure etc. It is a practical engineering instrument with high stability and high beam quality. Light travels back and forth symmetrically in cavity, that lets the gain distribution become even, and depresses the high order mode. At the same time, the attribution of the directional prism including the phase-conjugate and self-collimation can compensate the phase aberration, the wedge-shaped effect and double-refraction effect by heat. It ensures the heat stability in large repetition range. Laser operates with 53 ampere, 10 Hz repetition rate at room temperature. Experimental results are as follows: laser ou