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Proceedings Paper

Design of control system for stabilization output power of diode-pumped single frequency Nd:YAG laser at 1064nm
Author(s): Yi Zheng; Mingxing Jiao; Junhong Xing
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Paper Abstract

The laser output power stability is one of the most important parameters to evaluate a laser performance. Both the operation principle and the structural features of a laser-diode (LD) end-pumped single-frequency Nd:YAG laser at 1064nm are described, the main factors that affect the stability of Nd:YAG laser output power are recieved, and a control scheme has been proposed and experimentally studied for the stabilization Nd:YAG laser output power. Because the output power of Nd:YAG laser is proportional to the injection current LD when the temperature of LD and Nd:YAG crystal rod is stable, the control scheme requires firstly that the temperature of LD and Nd:YAG crystal rod be strictly controlled, then LD's injection current be adjusted throng a negative feedback control system when Nd:YAG laser output power fluctuates. Experimental results indicate the laser output power stability is better than 1.3% within a period of 130 minutes by use of the designed control system when the output power of LD-pumped single-frequency Nd:YAG laser at 1064nm is about 11.5mW,

Paper Details

Date Published: 31 December 2010
PDF: 8 pages
Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75444R (31 December 2010);
Show Author Affiliations
Yi Zheng, Xi'an Univ. of Technology (China)
Mingxing Jiao, Xi'an Univ. of Technology (China)
Junhong Xing, Xi'an Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7544:
Sixth International Symposium on Precision Engineering Measurements and Instrumentation
Jiubin Tan; Xianfang Wen, Editor(s)

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