Q-switched Yb~(3+):YVO_4 laser with Raman self-conversion

摘要

We report the efficient continuous-wave (CW) and Q-switched laser operation of a diode-pumped Yb: YVO_4 laser. A CW output power of 1 W with a slope efficiency of 59% with respect to absorbed pump power was demonstrated. Passively Q-switched with a Cr~(4+):YAG saturable absorber, a Yb:YVO_4 laser with Raman conversion was demonstrated. Q-switched 18.7-μJ pulses with a pulse duration of 17 ns and a peak power up to 1 kW were obtained at 1018-nm fundamental wavelength and 3.6-μJ pulses with a pulse duration of 6 ns and a peak power of about 0.6 kW were obtained at 1119.5-nm first-Stokes wavelength.