Coherent beam and image amplification by Brillouin two-beam coupling in CS₂

Abstract

We report an experimental study of Brillouin two-beam coupling in CS₂ at 1.06 μm in the regime below the pump’s stimulated Brillouin scattering (SBS) threshold. Angular discrimination between the pump and signal beams is employed. No competitive self-SBS (phase conjugation) of the pump was observed despite operation near the SBS threshold. Image intensification by a factor of 300 is demonstrated with this configuration.

© 1990 Optical Society of America

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