Efficient Raman lasers based on Ba(NO3)2 and KGd(WO4)2 crystals which produce nanosecond pulses with repetition rates of 1 and 4 kHz at 26 wavelengths between 280 and 1600 nm are developed and studied. A maximum SRS conversion efficiency of 25% is obtained. It is found that the divergence of the beams generated by the Raman laser can be significantly reduced by using quasi-Bessel pump beams and an unstable telescope cavity.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 77, No. 4, pp. 576–582, July–August, 2010.
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Vodchits, A.I., Busko, D.N., Orlovich, V.A. et al. Kilohertz raman lasers based on bno and kgw crystals for a wide spectral range. J Appl Spectrosc 77, 534–540 (2010). https://doi.org/10.1007/s10812-010-9365-x
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DOI: https://doi.org/10.1007/s10812-010-9365-x