Highly efficient passively Q-switched Tm,Ho:GdVO4 laser with kilowatt peak power

Yanqiu Du; Baoquan Yao; Wei Liu; Zheng Cui; Xiaoming Duan; Youlun Ju; Hong Yu

doi:10.1117/1.OE.55.4.046112

25 April 2016 Highly efficient passively Q-switched Tm,Ho:GdVO₄ laser with kilowatt peak power

Yanqiu Du, Baoquan Yao, Wei Liu, Zheng Cui, Xiaoming Duan, Youlun Ju, Hong Yu

Author Affiliations +

Optical Engineering, Vol. 55, Issue 4, 046112 (April 2016). https://doi.org/10.1117/1.OE.55.4.046112

Abstract

We present the experimental results on the laser characteristics of diode-pumped passively Q-switched Tm,Ho:GdVO₄ and Tm,Ho:YVO₄ lasers with a Cr²⁺:ZnS saturable absorber emitting in the 2-μm range. The Tm,Ho:GdVO₄laser exhibits better performance than the Tm,Ho:YVO₄ laser. The minimum pulse duration of 32.7 ns is obtained with the pulse energy of 0.30 mJ, corresponding to the peak power of 9.1 kW. The slope efficiencies of continuous wave and passively Q-switched Tm,Ho:GdVO₄lasers are 49.9% and 36.5%, corresponding to the Q-switching efficiency of 70.2%.

Citation Download Citation

Yanqiu Du, Baoquan Yao, Wei Liu, Zheng Cui, Xiaoming Duan, Youlun Ju, and Hong Yu "Highly efficient passively Q-switched Tm,Ho:GdVO₄ laser with kilowatt peak power," Optical Engineering 55(4), 046112 (25 April 2016). https://doi.org/10.1117/1.OE.55.4.046112

Published: 25 April 2016

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