L. Yina, G. Q. Lia, *, S. Z. Zhaoa, X. Lia, K. Chenga, G. Zhanga, and Y. G. Wangb
aSchool of Information Science and Engineering and Shandong Provincial Key Laboratory of Laser Technology
and Application, Shandong University, Jinan 250100, China
bResearch Center for Applied Sciences, Academia Sinica, Taiwan, China
*e-mail: gquili@sdu.edu.cn
Received July 27, 2011; in final form July 31, 2011; published online November 28, 2011
Abstract—By using a piece of single-walled carbon nanotube saturable absorber, the performance of the pas-
sively Q-switched composite Nd:YVO4 laser has been demonstrated for the first time. The maximum average
output power and the shortest pulse width are 1220 mW and 103 ns at the incident pump power of 5.04 W for
a 10% transmission of the output coupler. The highest pulse repetition rate of 415.6 kHz and the largest single-
pulse energy of 2.94 
J are also obtained. The composite Nd:YVO4 crystal has more excellent laser perfor-
mance than the normal Nd:YVO4 crystal at 1064 nm.
DOI: 10.1134/S1054660X1201029X
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