Self-Raman frequency conversion in a diode-pumped passively Q-switched Nd:GdVO 4 laser has been demonstrated. The use of LiF:F − 2 crystal as a saturable absorber has provided effective Q-switching of the Nd:GdVO 4 laser with high pulse energy. The laser pulse duration at the 1 st Stokes wavelength 1174 nm was as short as 500 ps. Diode-to-Raman optical conversion efficiency more than 2 % at the pulse peak power of 9 kW was achieved.a.u. Nd:GdVO4 Raman laser temporal characteristics
CaF(2)-SrF(2)-YbF(3) fluoride ceramics of high optical quality was prepared, and its absorption, fluorescence, and laser oscillation properties were investigated. Oscillation slope efficiency that was only a few percent lower than that for a single crystal of similar composition was demonstrated under diode pumping.
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