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High-power lasers for directed-energy applications: comment

机译:用于定向能量应用的大功率激光器:评论

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Sprangle et al. [Appl. Opt. 54, F201 (2015)] recently concluded that our experiments on coherent combining of laser beams over an atmospheric path [Opt. Lett. 36, 4455 (2011)] were "effective only because at these low-power levels the linewidth of the lasers was very narrow. and the level of atmospheric turbulence was low...." These conclusions are inaccurate, not relevant to practical high-power coherently combined laser systems, and contradict our most recent experiments with coherent combining of 21 laser beams with a linewidth of about 1 GHz over 7 km distance. In this comment we also challenge the major conclusion of Sprangle et al. [Appl. Opt. 54, F201 (2015)] and the more recently published paper by Nelson et al. [Appl. Opt. 55, 1757 (2016)] regarding inefficiency of coherent beam combining under typical atmospheric conditions. (C) 2016 Optical Society of America
机译:Sprangle等。 [应用选择。 54,F201(2015)]最近得出结论,我们在大气路径上对激光束进行相干组合的实验[Opt。来吧36,4455(2011)]“仅因为在这些低功率级别上,激光器的线宽非常窄。并且大气湍流级别很低....”才是有效的。这些结论是不准确的,与实际的高功率无关。功率相干组合的激光系统,并且与我们最近的实验相违背,它的21条激光束的相干组合具有7 km的距离,线宽约为1 GHz。在这篇评论中,我们还挑战了Sprangle等人的主要结论。 [应用选择。 54,F201(2015)]和Nelson等人最近发表的论文。 [应用选择。 55,1757(2016)]讨论了在典型大气条件下相干光束合成的效率低下。 (C)2016美国眼镜学会

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