高能光纤激光器光束合成技术  

Beam combining of high energy fibre lasers

作　　者：程雪 王建立[1,3] 刘昌华 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100049 [3]中国科学院紫金山天文台中国科学院空间目标与碎片观测重点实验室,江苏南京210008

出　　处：《红外与激光工程》2018年第1期94-104,共11页Infrared and Laser Engineering

基　　金：吉林省与中国科学院科技合作高新技术产业化专项资金项目(2015SYHZ003)

摘　　要：高能光纤激光器光束合成技术是近年来高能激光器尤其是定向能源应用中的研究热点,可突破单根单模光纤激光的输出功率限制,为高功率高光束质量的激光武器应用奠定了理论基础。介绍了光纤激光非相干合成和相干合成的国内外研究现状,给出了非相干合成技术中光束重叠和光谱合成的基本合成原理,重点介绍了国内外多家研究机构光谱合成近年来所达到的技术水平;介绍了国内外相干合成技术的最新研究进展,对相干合成等效大口径激光阵列输出中几种不同的透射式相干合成阵列输出和反射式相干合成阵列输出的关键合成装置,以及相干合成单一孔径输出中的核心光学元件进行详细分析。最后简要对比了高能光纤激光器光束相干合成技术和非相干合成技术的优缺点和应用范围。Beam combining of high energy fibre lasers is the research hotspot especially for the directed energy application in recent years, which can overcome the output power lever limits of one single-mode fibre laser, and establish the theoretical foundation for the application of laser weapons with high power and perfect beam quality. Research status of fibre laser incoherent combining and coherent combining were presented. In the section of incoherent combining, the combining principle and combining level of beam overlap and spectral beam combining were introduced. In the section of coherent combining, the key combining apparatus of transmission-type and reflection-type equivalent large aperture laser array output and optical element of single aperture output were analyzed in detail. The advantages and disadvantages and range of application of high power fibre laser beam coherent combining and incoherent combining were compared briefly.

关 键 词：光纤激光器 相干合成 非相干合成 激光合束 

分 类 号：TN253[电子电信—物理电子学]