Journal
OPTICS EXPRESS
Volume 23, Issue 19, Pages 24955-24961Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.23.024955
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Funding
- National Key Scientific Instrument and Equipment Development Projects of China [2012YQ04016401]
- Major Program of National Natural Science Foundation of China [50990301]
- National Natural Science Foundation of China [61505041, 61505042]
- General Financial Grant from the China Postdoctoral Science Foundation [2014M560262, 2013M531040]
- Special Financial Grant from the China Postdoctoral Science Foundation [2015T80350, 2014T70336]
- Postdoctoral Fund of Heilongjiang Province [LBH-Z14074, LBH-Z13081]
- Natural Science Foundation of Heilongjiang Province of China [F2015011]
- Fundamental Research Funds for the Central Universities [HIT. NSRIF. 2015044, HIT. NSRIF. 2014045]
- Special Financial Grant from the Heilongjiang Province Postdoctoral Foundation [LBH-TZ0507]
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A novel four-beam (named laserI, laser II, laser III and laser IV, respectively), passively Q-switched, pulse-burst ceramic Nd:YAG laser under 2 x 2 micro-lens array pumping was demonstrated for the purpose of laser-induced plasma ignition (LIPI). Multiple-beam output together with pulse-burst mode in which both high repetition rate and high pulse energy can be realized simultaneously were obtained to greatly improve the performance of LIPI. The pulse-burst contained a maximum of 5 pulses, 3 pulses, 2 pulses and 3 pulses for laserI, laser II, laser III and laser IV, respectively, and the corresponding repetition rate of laser pulses in pulse-burst was 10.8 kHz, 7.2 kHz, 6.8 kHz and 5.2 kHz, respectively. The output energy for single laser pulse in pulse-burst was in the range of 0.12 mJ to 0.22 mJ. (C) 2015 Optical Society of America
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