Highly efficient Q-switched laser operation of Yb:Y3Ga5O12 garnet crystal

被引:26
作者
Liu, Junhai [1 ,3 ]
Tian, Xueping [1 ,3 ]
Wu, Kui [2 ]
Dai, Qibiao [1 ,3 ]
Han, Wenjuan [1 ,3 ]
Zhang, Huaijin [2 ]
机构
[1] Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China
[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[3] Qingdao Univ, Shandong Univ, Key Lab Photon Mat & Technol, Qingdao 266071, Peoples R China
基金
中国国家自然科学基金;
关键词
YB/LUAG; GROWTH;
D O I
10.1364/OE.21.002624
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We demonstrate, for the first time, passively Q-switched laser operation of Yb:Y3Ga5O12 garnet crystal. An output power of 4.53 W at 1031 nm was generated at a pulse repetition rate of 55.6 kHz, with a Cr4+:YAG crystal acting as saturable absorber whose initial transmission was 97.5%, the corresponding pulse energy, duration and peak power were respectively 81.5 mu J, 28.5 ns and 2.86 kW. Laser pulses at a lower repetition rate of 18.2 kHz were also achieved at 1025 nm while the initial transmission of the Cr4+:YAG crystal was 85.0%, with an output power measured to be 2.56 W, the resulting pulse energy, duration, and peak power being 140.8 mu J, 5.9 ns, and 23.9 kW, respectively. (C) 2013 Optical Society of America
引用
收藏
页码:2624 / 2631
页数:8
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