Laser diode end pumped accousto-optical  Q-switched Nd:YVO４ laser with high power and high slope efficiency

yu jin; zhang xue; liu yang; fan zhongwei; zhao tianzhuo; ma yunfeng; zhang jing; wang peifeng

Volume 23 Issue 02

Sep. 2012

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Abstract

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Article Navigation > High Power Laser and Particle Beams > 2011 > 23(02): 0-

Zhou Quanfeng, Lu Yuanrong, Zhu Kun, et al. Tuning and measurement of inter-electrode voltage for four-rod radio frequency quadrupole accelerator[J]. High Power Laser and Particle Beams, 2013, 25: 124-128.

Citation:

yu jin, zhang xue, liu yang, et al. Laser diode end pumped accousto-optical Q-switched Nd:YVO４ laser with high power and high slope efficiency[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

yu jin, zhang xue, liu yang, et al. Laser diode end pumped accousto-optical Q-switched Nd:YVO４ laser with high power and high slope efficiency[J]. High Power Laser and Particle Beams, 2011, 23.

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Laser diode end pumped accousto-optical Q-switched Nd:YVO４ laser with high power and high slope efficiency

1.
Academy of Opto-Electronics,Chinese Academy of Sciences,Beijing 100080,China;
2.
Beijing GK Laser Technology Co Ltd,Beijing 100085,China;
3.
Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;
4.
Graduate University of Chinese Academy of Sciences,Beijing 100039,China

Publish Date: 2011-01-25

Abstract

Abstract

A high average output power， high slope efficiency acousto-optical Q-switched 1 064 nm laser is reported with a laser diode (LD) endpumped Nd:YVO4 double-bonded crystal scheme. With the proper estimation of thermal lensing effects under intense pumping, the mode matching and thermally stable cavity parameters are discussed and optimized, and a stable high-power highslope efficiency output is obtained. At the highest repetition rate of 50 kHz and pump power of 46.8 W, a maximum average output power of 17.6 W is achieved with optical conversion efficiency of 37.6%, slope efficiency of 70.1% and pulse width of 513 ns. At the lowest repetition rate of 10 kHz, a maximum single pulse energy of 0.91 mJ and peak power of 46.2 kW are measured with pulse width of 19.8 ns.
- high slope efficiency,
- acousto-optical q-switched laser,
- double-bonded crystal,
- end pumped,
- laser diode

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