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Proceedings Paper

Study on the electromagnetic radiation characteristics of discharging excimer laser system
Author(s): Duliang Zhao; Xu Liang; Xiaodong Fang; Qingsheng Wang
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Paper Abstract

Excimer laser in condition of high voltage, large current and fast discharge will produce strong electromagnetic pulse radiation and electromagnetic interference on the around electrical equipment. The research on characteristics and distribution of excimer laser electromagnetic radiation could provide important basis for electromagnetic shielding and suppressing electromagnetic interference, and further improving the electromagnetic compatibility of system. Firstly, electromagnetic radiation source is analyzed according to the working principle of excimer laser. The key test points of the electromagnetic radiation, hydrogen thyratron, main discharge circuit and laser outlet, are determined by the mechanical structure and the theory of electromagnetic radiation. Secondly, characteristics of electromagnetic field were tested using a near field probe on the key positions of the vertical direction at 20, 50, and 80 cm, respectively. The main radiation frequencies and the radiation field characteristics in the near field are obtained. The experimental results show that the main radiation frequencies distribute in 47, 65, and 130 MHz for electric field and the main radiation frequencies distribute in 34, 100, and 165 MHz for magnetic field. The intensity of electromagnetic field decreases rapidly with the increase of test distance. The higher the frequency increases, the faster the amplitude attenuate. Finally, several electromagnetic interference suppression measurement methods are proposed from the perspective of electromagnetic compatibility according to the test results.

Paper Details

Date Published: 19 October 2016
PDF: 8 pages
Proc. SPIE 10152, High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration, 1015211 (19 October 2016); doi: 10.1117/12.2247001
Show Author Affiliations
Duliang Zhao, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
Xu Liang, Anhui Institute of Optics and Fine Mechanics (China)
Xiaodong Fang, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
Qingsheng Wang, Anhui Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10152:
High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration
Lijun Wang; Zhiping Zhou, Editor(s)

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