A compact and efficient diode-pumped acousto-optically Q -switched intracavity frequency-doubled Nd:Y VO<sub>4</sub>/KTP green laser is demonstrated. With 0.5-at. % Nd:Y VO<sub>4</sub>, greater than 4.6 W of 532-nm average power at a repetition rate of 50 kHz was generated with 17-W pump power, corresponding to a conversion efficiency of 27%. At 10–30 kHz the pulse width is shorter than 10 ns, and the peak power is higher than 13 kW.
© 1999 Optical Society of America
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
(190.7220) Nonlinear optics : Upconversion
(320.7090) Ultrafast optics : Ultrafast lasers
Yung-Fu Chen, "High-power diode-pumped Q-switched intracavity frequency-doubled Nd:YVO4 laser with a sandwich-type resonator," Opt. Lett. 24, 1032-1034 (1999)