Passive <i>Q</i>-switching performance was found to be greatly improved by use of a new Nd-doped mixed vanadate crystal Nd:Gd<sub>0.64</sub>Y<sub>0.36</sub>VO<sub>4</sub> compared with that achieved with Nd:YVO<sub>4</sub> and Nd:GdVO<sub>4</sub>. At an absorbed pump power of 12 W, an average output power of 2.78 W was obtained at a pulse repetition frequency of 15.4 kHz with an optical conversion efficiency of 23.2%, and the slope efficiency was determined to be 45.5%. The resulting pulse energy, peak power, and pulse width were 181μJ, 26.6 kW, and 6.8 ns, respectively.
© 2003 Optical Society of America
(140.3380) Lasers and laser optics : Laser materials
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
Junhai Liu, Zhengping Wang, Xianlin Meng, Zongshu Shao, Bernd Ozygus, Adalbert Ding, and Horst Weber, "Improvement of passive Q-switching performance reached with a new Nd-doped mixed vanadate crystal Nd:Gd0.64Y0.36VO4," Opt. Lett. 28, 2330-2332 (2003)