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Picosecond Stimulated Raman Scattering in BaWO4 Crystal with Close to Quantum Limit Efficiency

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Abstract

Stimulated Raman scattering of 35-ps pulses in BaWO4 crystal was studied. The second harmonics of a Nd:YAG double-mode-locked laser system was used as a pumping radiation source. The first Stokes conversion efficiency reached 38% in singlepass and 85% in double-pass setup. The second Stokes was generated with 20% (singlepass) and 50% (double-pass) conversion efficiency. Temporal profiles measurement of pump and first Stokes radiation with picosecond resolution was performed. The obtained conversion efficiency data were compared with a plane-wave numerical model. BaWO4 crystal can be considered an efficient Raman-active material for utilization in picosecond solid- state laser systems.

© 2002 Optical Society of America

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