PHASE CONJUGATED WAVEFRONTS BY STIMULATED BRILLOUIN AND RAMAN-SCATTERING

Experimental investigations were made of wavefront reproduction (WFR) by backward stimulated Raman scattering (SRS) and backward stimulated Brillouin scattering (SBS) in CS2 with a linearly polarized ruby pump beam. The experimental studies were carried out as a function of the optical waveguide diameter and photographic records comparing the pump beam with the backscattered SBS and SRS beams are presented. In all of the cases studied there was a high degree of replication between the SBS and pump beams; however, a deterioration in the quality of the replicated SRS beam was observed, and it increased as the cross-sectional area of the waveguide increased. © 1979.