搭建了一台全光纤结构的光纤激光器。采用双端泵浦结构, 共有36个泵浦输入端。在使用其中的24个泵浦输入端, 泵浦功率为1 477 W时, 获得了1 008 W高功率输出, 光光转换效率为68%。输出激光的中心波长为1 082 nm, 半波全宽为3 nm。目前激光器输出功率受限于泵浦功率, 增加泵浦源的数目有望进一步提高输出功率。

We report a high-power fiber laser in all-fiber format. The system consists of 36 pump ports, both counter and forward pump configuration are employed. In the experiment, 1 008 W fiber laser is obtained when 24 pump ports are employed with a total pump power of 1 477 W. The optical-to-optical conversion efficiency is 68%. The central wavelength of the output laser is 1 082 nm with a 3 dB bandwidth of 3 nm. Presently, the output power is limited by the pump source. It can be predicted that the laser power can be further scaled if more pump sources are employed.