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Proceedings Paper

Optimization of discharge circuit of the TEA CO2 laser with two discharge channels
Author(s): Xiao Yong Hu; LiLi Zhang; DeMing Ren; YanChen Qu; WeiJiang Zhao; BaoAn Song
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Paper Abstract

In order to achieve the highest peak power of radiation pulse and highest output energy, the primary circuit parameters are investigated to optimize the discharge circuit performance of the laser. The structure and the discharge circuit of the laser are discussed at first. To realize synchronous discharge in two discharge channels, the conjunct electrode device for two pairs of discharge electrodes is designed. Finally, the results of the experiments on the primary circuit parameters are given. The discharge is most stable at a pressure of 5.33×104Pa when the pressure of gaseous mixture CO2:N2:He=1:1:3 is changed from 2.67×104 Pa to 6.67×104 Pa. The ratio of storage capacitance to peak capacitance is chosen to be about 1.5-7/3, because residual voltage is lower on this condition and residual voltage is adverse to discharge. When the inductance 330&mgr;H is used, the homogeneous glow discharge in a widest voltage range is obtained. The duration of when the stimuli voltage is increased in homogeneous glow discharge condition. The discharge circuit allows charge and discharge and the magnitude of residual voltage decrease the homogeneous glow discharge in a wide range of pressure of gaseous mixture when these circuit parameters are used. Thus it offers reference to the improvement of output characteristic of TEA CO2 laser with two discharge channels.

Paper Details

Date Published: 5 March 2007
PDF: 6 pages
Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65950H (5 March 2007); doi: 10.1117/12.726601
Show Author Affiliations
Xiao Yong Hu, Harbin Institute of Technology (China)
LiLi Zhang, Harbin Institute of Technology (China)
DeMing Ren, Harbin Institute of Technology (China)
YanChen Qu, Harbin Institute of Technology (China)
WeiJiang Zhao, Harbin Institute of Technology (China)
BaoAn Song, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 6595:
Fundamental Problems of Optoelectronics and Microelectronics III
Yuri N. Kulchin; Jinping Ou; Oleg B. Vitrik; Zhi Zhou, Editor(s)

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