10 kW-level spectral beam combination of two high power broad-linewidth fiber lasers by means of edge filters
10 kW-level spectral beam combination of two high power broad-linewidth fiber lasers by means of edge filters
复制标题
通过边缘滤波器将两个高功率宽线宽光纤激光器组合成 10 kW 级光谱光束
DOI：
10.1364/oe.25.032783
复制
发表时间：
2017-12-25
期刊：
影响因子：
3.8
通讯作者：
Dou, Jiantai
中科院分区：
文献类型：
--
作者：
Chen, Fan;Ma, Jun;Dou, Jiantai
我们演示了一种方案，频谱合并两个高功率，宽线宽单光束使用陡峭边缘滤波器作为合并元素。在光束质量M-x(2) = 11.4, M-y(2) = 10.4的条件下，实现10.12 kW的组合输出功率。据我们所知，这是有史以来报道的基于SBC系统滤波器的最高输出功率。尽管单通道发射光谱很宽，但测量到的组合效率为98.9%，这证明了该滤波器在反射和透射情况下的高效率。详细分析了热行为，以帮助优化光束质量。这种SBC系统允许具有宽线宽的光束的有效组合，并提供了另一种方法来实现超过10 kW水平的组合输出光束。(C) 2017年美国光学学会根据OSA开放获取出版协议的条款
We demonstrated a scheme to spectrally combine two high power, broad-linewidth single beams using a steep edge filter as the combining element. 10.12 kW combined output power is achieved with a beam quality of M-x(2) = 11.4 and M-y(2) = 10.4. To the best of our knowledge, this is the highest output power ever reported for the filter based SBC system. Despite the broad emission spectrum of the single channel, the combining efficiency is measured to be 98.9%, which proves the high efficiency of the filter for both the reflection and transmission cases. A detail analysis of the thermal behavior is carried out to aid in the optimization of the beam quality. This SBC system permits the efficient combining of the beams with broad linewidth and provides another approach to achieve a combined output beam beyond 10 kW level. (C) 2017 Optical Society of America under the terms of the OSA Open Access Publishing Agreement