Precision of control of the angular distribution of radiation from a neodymium glass laser with phase conjugation and an intracavity space–time light modulator

The method is described and the experimental results are reported of an investigation of the precision of control of the angular distribution of radiation in a laser amplifier with phase conjugation coupled to a master oscillator with an intracavity light-controlled space–time modulator. It is shown that the precision of control of the direction of radiation is at least 0.3 of the diffraction divergence of a beam and the response time of the modulator to a control signal is 500 μs. The results are given of a study of the precision of phase conjugation of radiation by double reflection from stimulated Brillouin scattering mirrors, including results obtained under conditions simulating self-interaction of radiation.