We designed an arrangement of 19 high-power fiber laser collimators on an aluminum step bulk in coherent combination for use in directed energy applications. Strong environmental turbulence degrades coherent beam combining advantages; therefore, we only consider low-turbulence levels. The combining elements are single mode 3 kW high-power fiber lasers, which are collected by 19 right-angle prisms in two concentric hexagonal rings for combination. With this configuration, a high combining efficiency of 88%, a high filling factor up to f = 0.9 and lower cost production of the beam combining process are possible.

中文翻译：

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用于定向能量应用的 19 个光纤激光准直器的阶梯式整体排列

我们在铝阶梯体上设计了 19 个高功率光纤激光准直器的相干组合，用于定向能量应用。强烈的环境湍流降低了相干光束组合的优势；因此，我们只考虑低湍流水平。组合元件为单模3kW大功率光纤激光器，由19个直角棱镜聚光在两个同心六边形环中进行组合。使用这种配置，88% 的高组合效率、高达f = 0.9的高填充因子和光束组合工艺的低成本生产都是可能的。