Placement Scheme of Numerous Laser Beams in the Context of Fiber-Based Laser Fusion

A simple scheme based on the uniform distribution for the placement of numerous laser beams in the context o~ fiber-based laser fusion is proposed. It is theoretically demonstrated that all modes of the geometrical factor can be eliminated if sufflcient laser beams are uniformly distributed on the s...

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Bibliographic Details
Published inChinese physics letters Vol. 31; no. 9; pp. 99 - 102
Main Author 徐腾 许立新 王安廷 顾春 王声波 刘静 魏安琨
Format Journal Article
LanguageEnglish
Published 01.09.2014
Subjects
光纤
几何因子
均匀分布
数值模拟
激光束
激光聚变
细分算法
面积相等
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Summary:A simple scheme based on the uniform distribution for the placement of numerous laser beams in the context o~ fiber-based laser fusion is proposed. It is theoretically demonstrated that all modes of the geometrical factor can be eliminated if sufflcient laser beams are uniformly distributed on the sphere. In the case of a finite number of laser beams, a quasi-uniform distribution of beams can be achieved based on the equal area subdivision algorithm. Numerical simulations indicate that with the increasing number of laser beams, the order of the dominant geometrical mode increases, and the irradiation nonuniformity decreases accordingly.
Bibliography:11-1959/O4
A simple scheme based on the uniform distribution for the placement of numerous laser beams in the context o~ fiber-based laser fusion is proposed. It is theoretically demonstrated that all modes of the geometrical factor can be eliminated if sufflcient laser beams are uniformly distributed on the sphere. In the case of a finite number of laser beams, a quasi-uniform distribution of beams can be achieved based on the equal area subdivision algorithm. Numerical simulations indicate that with the increasing number of laser beams, the order of the dominant geometrical mode increases, and the irradiation nonuniformity decreases accordingly.
XU Teng, XU Li-Xin, WANG An-Ting, GU Chun, WANG Sheng-Bo, LIU Jing, WEI An-Kun（ Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei 230026）
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/9/095201