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Proceedings Paper

The development and progress of XeCl Excimer laser system
Author(s): Yongsheng Zhang; Lianying Ma; Dahui Wang; Xueqing Zhao; Yongxiang Zhu; Yun Hu; Hang Qian; Bibo Shao; Aiping Yi; Jingru Liu
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Paper Abstract

A large angularly multiplexed XeCl Excimer laser system is under development at the Northwest Institute of Nuclear Technology (NINT). It is designed to explore the technical issues of uniform and controllable target illumination. Short wavelength, uniform and controllable target illumination is the fundamental requirement of high energy density physics research using large laser facility. With broadband, extended light source and multi-beam overlapping techniques, rare gas halide Excimer laser facility will provide uniform target illumination theoretically. Angular multiplexing and image relay techniques are briefly reviewed and some of the limitations are examined to put it more practical. The system consists of a commercial oscillator front end, three gas discharge amplifiers, two electron beam pumped amplifiers and the optics required to relay, encode and decode the laser beam. An 18 lens array targeting optics direct and focus the laser in the vacuum target chamber. The system is operational and currently undergoing tests. The total 18 beams output energy is more than 100J and the pulse width is 7ns (FWHM), the intensities on the target will exceed 1013W/cm2. The aberration of off-axis imaging optics at main amplifier should be minimized to improve the final image quality at the target. Automatic computer controlled alignment of the whole system is vital to efficiency and stability of the laser system, an array of automatic alignment model is under test and will be incorporated in the system soon.

Paper Details

Date Published: 4 May 2015
PDF: 6 pages
Proc. SPIE 9543, Third International Symposium on Laser Interaction with Matter, 95431C (4 May 2015); doi: 10.1117/12.2181950
Show Author Affiliations
Yongsheng Zhang, Northwest Institute of Nuclear Technology (China)
Lianying Ma, Northwest Institute of Nuclear Technology (China)
Dahui Wang, Northwest Institute of Nuclear Technology (China)
Xueqing Zhao, Northwest Institute of Nuclear Technology (China)
Yongxiang Zhu, Northwest Institute of Nuclear Technology (China)
Yun Hu, Northwest Institute of Nuclear Technology (China)
Hang Qian, Northwest Institute of Nuclear Technology (China)
Bibo Shao, Northwest Institute of Nuclear Technology (China)
Aiping Yi, Northwest Institute of Nuclear Technology (China)
Jingru Liu, Northwest Institute of Nuclear Technology (China)


Published in SPIE Proceedings Vol. 9543:
Third International Symposium on Laser Interaction with Matter
Yury M. Andreev; Zunqi Lin; Xiaowu Ni; Xisheng Ye, Editor(s)

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