Abstract
We study experimentally stimulated Brilluoin scattering (SBS) of vortex laser beams, namely, the LG11 and LG01 Laguerre -Gaussian modes. The wave front transformation is experimentally demonstrated in the case of SBS of the LG11 laser mode, directly focused into the SBS cell, when the fundamentalGaussian mode LG00 rather than the conjugate mode is selectedfrom the Stokes beam. It is shown that optical vortices become phase conjugate by destroying the laser mode structure in the SBS cell. Phase conjugation (PC) of the LG01 and LG11 modes is obtained in the SBS mirror using a regular aberrator (microlens raster) in the system of laser beam focusing into the SBS cell.
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