Phase-conjugate Nd:YAG laser with internal acousto-optic beam steering.

We propose and experimentally demonstrate a stimulated Brillouin scattering phase-conjugate Nd:YAG laser source with beam-steering capability. The laser, designed in an oscillator-amplifier configuration, incorporates a TeO(2) acousto-optic deflector on the low-energy beam. Output pulse energies in the range of 100-185 mJ and a 2.7 degrees full angular bandwidth with 40 resolved beam directions are reported. Electronically controlled random beam pointing with a 5-micros access time and a beam divergence twice the diffraction limit is performed.