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

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Abstract

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 TeO2 acousto-optic deflector on the low-energy beam. Output pulse energies in the range of 100–185 mJ and a 2.7° full angular bandwidth with 40 resolved beam directions are reported. Electronically controlled random beam pointing with a 5-μs access time and a beam divergence twice the diffraction limit is performed.

© 1991 Optical Society of America

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