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Single-mode beam amplification in a multimode pump field during SRS in a barium nitrate crystal

The theoretical and experimental study of eye-safe single- mode beam SRS amplification in the barium nitrate crystal at 1.32 micrometers Nd:YAG laser pump field with wide angular spectrum was performed. It was ascertained that most effective method for improving of Stokes beam divergence lies in inclining of the pump beam.