Abstract
We monitored transverse intensity profiles of Nd:YAG laser beams that had undergone stimulated Brillouin scattering (SBS) after being mildly aberrated by a cylindrical lens (CL). Poor phase conjugation was confirmed by the presence of this aberration in the SBS reflected beam after it hadretraced the incident beam's path through the CL. The results are consistent with the occurrence, during this SBS, of spatial filtering near line foci typical of cylindrical waberration. When two such beams with overlapping focal regions undergo SBS together, the distortion of one beam after SBS reflection is insensitive to that of the other.
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