A diode-pumped Nd:YAG laser was frequency doubled to 0.532μm with an intracavity KTiOPO><sub>4</sub> crystal in a V-cavity arrangement, achieving an output power of 140 W. Acousto-optic <i>Q</i> switching was employed at repetition rates of 10–30 kHz, and the beam quality was assessed at M<sup>2</sup>≈50 . It was deduced on the basis of our model that the strength of the nonlinear frequency conversion is the main parameter determining the pulse width.
© 1998 Optical Society of America
Eric C. Honea, Christopher A. Ebbers, Raymond J. Beach, Joel A. Speth, Jay A. Skidmore, Mark A. Emanuel, and Stephen A. Payne, "Analysis of an intracavity-doubled diode-pumped Q-switched Nd:YAG laser producing more than 100 W of power at 0.532 μm," Opt. Lett. 23, 1203-1205 (1998)