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Doubly Q-switched nd:YVo4 Laser with Acoustic-optic Q-switching and Passive Q-switching
J-W. Zhang, W-L. Song, Y. Li and M-B. Li

In this paper a doubly Q-switched 1.06 μm Nd:YVO4 pulse laser with acoustic-optic (AO) Q-switch and Cr4+:YAG saturable absorber passive Q-switch was demonstrated. The pulse width was compressed from 22.6 to 17.5 ns and the pulse peak power was increased from 3.92 to 4.17 kW for the doubly Q-switched laser when compared with the acoustic-optics Q-switched laser at the conditions of incident pump power of 12 W and repetition rate of 50 kHz.

Keywords: Nd:YVO4 laser, double Q-switching, acoustic-optic Q-switch, passive Q-switch, pulse compression

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