High average power six-rod series connection pulsed Nd:YAG laser

Jiang Menghua; Li Qiang; Lei Hong; Hui Yongling; Feng Chi; Sun Zhe

doi:10.3788/HPLPB20122405.1047

Volume 24 Issue 05

Jun. 2016

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Article Navigation > High Power Laser and Particle Beams > 2012 > 24(05): 1047-1051

Cai Chuanxiong, Liu Hongxi, Zhang Xiaowei, et al. Influence of powder feeding angle on geometric parameters of laser-clad Fe-based composite coating[J]. High Power Laser and Particle Beams, 2013, 25: 1359-1364. doi: 10.3788/HPLPB20132506.1359

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Jiang Menghua, Li Qiang, Lei Hong, et al. High average power six-rod series connection pulsed Nd:YAG laser[J]. High Power Laser and Particle Beams, 2012, 24: 1047-1051. doi: 10.3788/HPLPB20122405.1047

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High average power six-rod series connection pulsed Nd:YAG laser

doi: 10.3788/HPLPB20122405.1047

1.
Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China

Received Date: 2011-06-20
Rev Recd Date: 2011-08-09
Publish Date: 2012-05-15

Abstract

Abstract

A six-rod series connection pulsed Nd:YAG laser was presented. 44 matrices were used to theoretically analyze the deviation of optical axis affected by the offset angle of Nd:YAG rods in the resonator, and the tolerance of the offset angle is given. A plane-plane symmetrical resonator has been used in the experiment, and through adjusting the offset angle of all rods within the tolerance, the six-rod series connection pulsed Nd:YAG laser was achieved. With an input electric power of 86 kW and a duty cycle of 17%, an output laser with an average power of 3 018 W, a peak power of 17.75 kW, the maximum single pulse energy of 66 J and a beam parameters product of 26.3 mmmrad was obtained. The electro-optical conversion efficiency was 3.5%, and the instability of the laser was less than 2%.
- pulsed laser,
- nd:yag,
- six-rod series connection resonator,
- lamp pumping

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