Temporal characteristics of repetitive frequency Nd:YAG thin-disc laser

Tan Li; Yang Huomu; Feng Guoying; Yin Ming; Wang Shutong; Zhou Shouhuan

doi:10.3788/HPLPB20132508.1883

Volume 25 Issue 08

Nov. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(08): 1883-1887

Chen Han, Yang Hanwu, Zhang Zicheng, et al. Transverse capacitance coupling UV pre-ionization switch[J]. High Power Laser and Particle Beams, 2013, 25: 2035-2039. doi: 10.3788/HPLPB20132508.2035

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Tan Li, Yang Huomu, Feng Guoying, et al. Temporal characteristics of repetitive frequency Nd:YAG thin-disc laser[J]. High Power Laser and Particle Beams, 2013, 25: 1883-1887. doi: 10.3788/HPLPB20132508.1883

Chen Han, Yang Hanwu, Zhang Zicheng, et al. Transverse capacitance coupling UV pre-ionization switch[J]. High Power Laser and Particle Beams, 2013, 25: 2035-2039. doi: 10.3788/HPLPB20132508.2035

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Temporal characteristics of repetitive frequency Nd:YAG thin-disc laser

doi: 10.3788/HPLPB20132508.1883

1.
College of Electronics and Information Engineering,Sichuan University,Chengdu 610064,China;
2.
North China Research Institute of Electro-Optics,Beijing 100015,China

Received Date: 2012-11-20
Rev Recd Date: 2013-01-21
Publish Date: 2013-06-19

Abstract

Abstract

Considering the four-level rate equations and the effects of pumping rate, loss factor and temperature, this paper theoretically deduced the expression of turn-on delay time for high power thin-disc laser. The numerical simulation results demonstrate the relationship of the pumping rate, loss factor and temperature versus the turn-on delay time. Corresponding experimental research was carried out on a kW-level repetition-frequency V-cavity Nd:YAG thin-disc laser. The relaxation oscillation curves illustrating the variations of photon number and inverted population were measured. The turn-on delay time was measured when the pump current was in the range of 30 A to 80 A. The experiment results show that the turn-on delay time reduces with the increase of pumping rate, which is consistent with the theoretical analysis.
- solid-state lasers,
- relaxation oscillation,
- temporal characteristics,
- rate equation,
- pumping rate

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