Investigation on efficiency of non-collinear serial laser beam combination based on Brillouin amplification

Investigation on efficiency of non-collinear serial laser beam combination based on Brillouin amplification
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基于布里渊放大的非共线串行激光合束效率研究

DOI:
10.1017/s0263034609990383
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发表时间:
2009-12
影响因子:
0.9
通讯作者:
Lin, D.Y.
Lin, D.Y.
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Lu, Z.W.;He, W.M.;Zheng, Z.X.;Wang, Y.L.;Wang, S.Y.;Lin, D.Y.

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提出了一种基于布里渊放大的非共线激光组束方法。从理论上分析和讨论了非共线布里渊放大对合波效率的影响。实验结果表明,当Stokes管与抽运管夹角在10°范围内时,抽运效率可达80%。理论预测在单斯托克斯单泵浦非共线放大实验中得到了验证。设计了一种双光束合束方案,并获得了80%的高合束效率。在此基础上,设计了一个20束的组合方案,获得了13.2J的输出能量.设计了一种非常简单的多梁组合结构。
A non-collinear laser beam combination based on Brillouin amplification is proposed. The influence of non-collinear Brillouin amplification on the combination efficiency is analyzed and discussed theoretically. It is shown that an efficiency of 80% can be achieved with the angle between the Stokes and the pump limited to a range of 10°. The theoretical prediction is tested in experiment of non-collinear amplification of one Stokes and one pump. A two-beam combination scheme is designed and a high combination efficiency of 80% is also obtained in this experiment. According to these results, a 20-beam combination scheme is designed to achieve 13.2-J output energy. A very simple construction for a multiple beams combination is designed.
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