光纤激光器外腔型光谱组束研究  

External Cavity Spectral Beam Combining of Fiber Lasers

作　　者：刘小溪 王学锋[1] 王军龙[1] 朱占达 郑也 李磐[1] Liu Xiaoxi;Wang Xuefeng;Wang J unlong;Zhu Zhanda;Zheng Ye;Li Pan Beijing(Institute of Aerospace Control Devices,Beijing 100094,China)

机构地区：[1]北京航天控制仪器研究所,北京100094

出　　处：《中国激光》2018年第8期50-55,共6页Chinese Journal of Lasers

基　　金：国家重点研发计划(2017YFF0104500)

摘　　要：实验研究了两路光纤激光器外腔反馈型光谱组束(SBC),采用透射式衍射光栅作为组束元件,实现了1060nm波长激光与1080nm波长激光的光谱组束输出。输出光束组束方向光束质量为1.328,非组束方向光束质量为1.257,组束输出功率为57.3 W,光-光效率为91.7%。采用该组束方案可以降低单路激光器线宽的要求,同时验证了多路激光进行组束的可行性,通过增加组束光束个数可以进一步提高组束输出功率。External cavity feedback spectral beam combining（SBC）of two fiber lasers is investigated experimentally.A transmission grating is employed as the beam combining element and the SBC of a 1060 nm laser and a 1080 nm laser is achieved.The beam quality of 1.328 in SBC direction is obtained,while the beam quality in the other direction is 1.257.The output power of the SBC system is 57.3 W with a combining efficiency of 91.7%.Based on the configuration in this experiment,the requirement on the bandwidth of a single laser participating in the SBC can be significantly relieved.The experiment results verify the feasibility of multi-channel SBC.The SBC output power can be improved by the increase of the channels of the SBC system.

关 键 词：激光光学 激光组束 光谱组束 光纤激光器 外腔反馈 

分 类 号：TN248[电子电信—物理电子学]