32.5 mJ and 4.6 ns 532 nm Q-switched Nd:YAG laser at 500 Hz

Zilong Zhang; Qiang Liu; Mali Gong

doi:10.1364/AO.52.002735

32.5 mJ and 4.6 ns 532 nm Q-switched Nd:YAG laser at 500 Hz

Appl Opt. 2013 Apr 20;52(12):2735-8. doi: 10.1364/AO.52.002735.

Authors

Zilong Zhang¹, Qiang Liu, Mali Gong

Affiliation

¹ Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instrument, Tsinghua University, Beijing, China.

PMID: 23669684
DOI: 10.1364/AO.52.002735

Abstract

A laser diode side-pumped electro-optical Q-switched Nd:YAG green light laser with high repetition rates, short pulse width, and high peak power was demonstrated. We studied the performance of the oscillator at the repetition rates from 100 to 500 Hz. At 500 Hz, 61 mJ, 5 ns of 1064 nm infrared light pulses were obtained with an oscillator-amplifier system. The peak power of the pulse was 12 MW. By frequency doubling with a LiB(3)O(5)(LBO) crystal, 32.5 mJ, 4.6 ns of 532 nm green light was achieved, corresponding to a peak power of 7 MW. The frequency conversion efficiency was 53.3%.