A comparison was made of the quality of phase locking of beams by different systems of phase conjugation due to stimulated Brillouin scattering. The quality was studied as a function of thermooptic aberrations induced in an amplifier with a composite active element. A numerical analysis was made of the precision of determination of the phase mismatch. A pulse-periodic YAl crystal laser system with a synthesized aperture and an output power up to 20 W was constructed.
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Васильев et al. (1991) studied this question.
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