High power high beam quality Nd: YAG pulsed laser

wang baohua; li qiang; jiang menghua; hui yongling; lei hong

Volume 21 Issue 05

May 2009

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Article Navigation > High Power Laser and Particle Beams > 2009 > 21(05): 0-

li wei, liu qingxiang, zhang zhengquan, et al. Simulation research on long pulse parallel resonant modulator[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

wang baohua, li qiang, jiang menghua, et al. High power high beam quality Nd: YAG pulsed laser[J]. High Power Laser and Particle Beams, 2009, 21.

li wei, liu qingxiang, zhang zhengquan, et al. Simulation research on long pulse parallel resonant modulator[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

wang baohua, li qiang, jiang menghua, et al. High power high beam quality Nd: YAG pulsed laser[J]. High Power Laser and Particle Beams, 2009, 21.

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High power high beam quality Nd: YAG pulsed laser

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

Publish Date: 2009-05-15

Abstract

Abstract

In this paper, the purpose of output pulsed laser with high-power and high beam quality is discussed, and the structure of unsymmetrical plane-concave resonator is analyzed theoretically. We have completed the laser, which could output high-power and high beam quality with single Nd: YAG rod pumped by double Xe-lamp and unsymmetrical plane-concave resonator. When the duty cycle was 9%, the average power of laser was nearly 480 W, beam parameters product was better than 12.7 mm·mrad and efficiency of electricity to light was nearly 4%, which matched the theoretical analysis well. The laser could be transmitted by optic fiber of 300 μm core diameter and its instability was less than ±1%. Processing experiment has proved that it had good cutting quality．
- pulsed solid laser,
- nd: yag,
- resonator,
- thermal focal length,
- beam quality

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