Laser diode end-pumped V:YAG passively Q-switched UV lasers at 335 nm

摘要

In this paper, we present the using of a c-cut Nd:GdVO_4 as the laser media, V:YAG as a saturable absorber and LBO as nonlinear crystal to obtain the passively Q-switched intra-cavity frequency doubled red laser at 670 nm and forth harmonic generation at 335 nm UV laser. Using dual end pump configurations at total pump power of 30Wat 808 nm, the repetition ratios of 153 kHz, the pulse width of 22 ns, average output power of 82 mW, peak power of 24.4 W and single pulse energy of 0.54 μJ pulsed 335 nm UV laser are obtained, the corresponding optical to optical conversion efficiency is about 0.273%.