High repetition rate short pulse width LGS electro-optic Q-switched Nd:YVO4 laser

被引：0
|
作者：
Tang H. [1 ,2 ]
Zhu X. [1 ,2 ]
Meng J. [1 ,2 ]
Zang H. [1 ,2 ]
机构：
[1] Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
[2] Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques
来源：
Guangxue Xuebao/Acta Optica Sinica | 2010年 / 30卷 / 01期
关键词：
Electro-optic Q-switched; High repetition rate; Lasers; LGS crystal;
D O I：
10.3788/AOS20103001.0137
中图分类号：
学科分类号：
摘要：
An electro-optic (EO) Q-switched Nd:YVO4 laser with high repetition rate of 30 kHz, end-pumped by a continuous-wave (CW) laser diode (LD) is reported. Using La3Ga5SiO14 (LGS) single crystal as an EO Q-switch and designing an efficient and stable resonator, the repetition rate of EO Q-switched operation can be changed from 1 Hz to 30 kHz. Using an output coupler with transmittance of 50%, an output pulse train with pulse energy of 0.4 mJ and pulse width of 6.3 ns is obtained at the repetition rate of 5 kHz. An average output power of 6.2 W with the pulse width of 9.1 ns is obtained when the repetition rate reaches 30 kHz, the slope efficiency and dynamic to static ratio are 32.7% and 83%, respectively. The beam transfer factor M2 is measured to be less than 2. Experimental results show that the output level has great potential for further development.
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页码：137 / 141
页数：4
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