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Proceedings Paper

Illumination uniformity of a spherical target directly driven by fiber lasers
Author(s): Teng Xu; Chun Gu; Lixin Xu; Anting Wang; Hai Ming
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Paper Abstract

Direct laser driven ICF system requires a high degree of uniformity in laser energy in order to avoid Rayleigh-Taylor instability. In all-fiber laser driven ICF system, millions of fibers are fixed around the target chamber. We suggest the fibers are arranged in bundles with a single lens coupling the output of a bundle. If the arrangement is optimized, top-flat intensity profile is acquired near the focus of the lens. Least square method is used here in determining the optimum values of relative parameters. Factors on the irradiation nonuniformity are also analyzed here by numerical simulations.

Paper Details

Date Published: 5 December 2011
PDF: 7 pages
Proc. SPIE 8198, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration, 81980Q (5 December 2011); doi: 10.1117/12.906598
Show Author Affiliations
Teng Xu, Univ. of Science and Technology of China (China)
Chun Gu, Univ. of Science and Technology of China (China)
Lixin Xu, Univ. of Science and Technology of China (China)
Anting Wang, Univ. of Science and Technology of China (China)
Hai Ming, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 8198:
2011 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration
Xuping Zhang; P. K. Alex Wai; Hai Ming, Editor(s)

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