T. T. Basiev, M. N. Basieva, A. V. Gavrilov, M. N. Ershkov, L. I. Ivleva, V. V. Osiko, S. N. Smetanin, A. V. Fedin, “Efficient conversion of Nd:YAG laser radiationto the eye-safe spectral region by stimulated Raman scatteringin BaWO<sub>4</sub> crystal”, Kvantovaya Elektronika, 2010, Volume 40, Number 8,Pages <nobr>710

This article is cited in 26 papers

Nonlinear optical phenomena

Efficient conversion of Nd:YAG laser radiationto the eye-safe spectral region by stimulated Raman scatteringin BaWO₄ crystal

T. T. Basiev^a, M. N. Basieva^a, A. V. Gavrilov^b, M. N. Ershkov^b, L. I. Ivleva^a, V. V. Osiko^a, S. N. Smetanin^b, A. V. Fedin^b

^a Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
^b V. A. Degtyarev Kovrov State Technological Academy

Abstract: The possibility of increasing the efficiency of one-cascade 1.5-μm SRS lasing in a BaWO₄ crystal placed into an external SRS cavity and pumped by a nanosecond Nd:YAG laser at a wavelength of 1.34 μm is studied. Conditions that prevent energy outflow to the second Stokes SRS component with a wavelength of 1.78 μm are found, which allowed us to increase the efficiency of one-cascade intracavity SRS lasing at 1.53 μm up to 60% and the slope efficiency up to the quantum limit (~80% at the SRS pulse energy up to 20 mJ). The use of pumping by laser pulse trains provided the possibility of increasing the 1.53-μm SRS radiation energy to 40 mJ in a three-pulse train.

PACS: 42.55.Ye, 42.55.Rz, 42.65.Dr, 42.66.Lc

Received: 15.06.2010