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arXiv 2201.03285physics.optics
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基于分束器的相干组束的定标势

The scaling potential of beam-splitter-based coherent beam combination

Michael Mueller, Christopher Aleshire, Joachim Buldt, Henning Stark, Christian Grebing, Arno Klenke, Jens Limpert

摘要:

从理论上分析了非线性折射和剩余吸收对基于分束器的相干组束中可达峰值功率和平均功率的影响。虽然峰值功率仍然仅受孔径尺寸的限制,但基本的平均功率限制由分束器材料及其涂层的热光学和热机械性质给出。根据我们的分析,100千瓦的平均功率可以获得与国家的最先进的光学保持高光束质量(M2 { \leq } 1.1),只有2%的合并效率的损失。这一结果表明,当今基于分束器的相干光束组合的功率缩放潜力远未耗尽。一个潜在的缩放路线兆瓦级平均功率的优化分束器的几何形状进行了讨论。

英文摘要:

The impact of nonlinear refraction and residual absorption on the achievable peak and average power in beam-splitter-based coherent beam combination is analyzed theoretically. While the peak power remains limited only by the aperture size, a fundamental average power limit is given by the thermo-optical and thermo-mechanical properties of the beam splitter material and its coatings. Based on our analysis, 100 kW average power can be obtained with state-of-the-art optics at maintained high beam quality (M2 {\leq} 1.1) and at only 2% loss of combining efficiency. This result indicates that the power-scaling potential of today's beam-splitter-based coherent beam combination is far from being depleted. A potential scaling route to megawatt-level average power is discussed for optimized beam splitter geometry.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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