Research on multi-kilowatts level tapered fiber bundle N × 1 pumping combiner for high power fiber laser

抽 combiner 是高力量纤维激光(HPFL ) 的一个核部件。我们表明逐渐变细的纤维捆(TFB ) 的二种类型对联合抽激光的多千瓦能的抽结束的 combiner。在联合性能的试验性的测试以后， 3？？

Pumping combiner is a kernel component of high power fiber laser （HPFL）. We demonstrate two types of tapered fiber bundle （TFB） end-pumping combiner able to combining multi-kilowatts of pumping laser. After the experimental test of coupling performance, the 3xl coupler is proved to have a power handling capacity of 2.11 kW with a coupling efficiency of 95.1%, and the 7× 1 coupler is capable of handling pumping power of 4.72 kW with a coupling efficiency of 99.4%. These two coupler have obtained the ability to be used in laser diodes （LDs） direct beam combining and the pumping coupling of multikilowatts level fiber lasers.