Frontiers of Optoelectronics, 2016, 9 (2): 301, 网络出版: 2016-10-21   

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

Research on multi-kilowatts level tapered fiber bundle N×1 pumping combiner for high power fiber laser
作者单位
Center for Photonics and Electronics, Department of Precision Instrument, Tsinghua University, Beijing 100084, China
摘要
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 3_1 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.
Abstract
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 3_1 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.

Qirong XIAO, Yusheng HUANG, Junyi SUN, Xuejiao WANG, Dan LI, Mali GONG, Ping YAN. Research on multi-kilowatts level tapered fiber bundle N×1 pumping combiner for high power fiber laser[J]. Frontiers of Optoelectronics, 2016, 9(2): 301. Qirong XIAO, Yusheng HUANG, Junyi SUN, Xuejiao WANG, Dan LI, Mali GONG, Ping YAN. Research on multi-kilowatts level tapered fiber bundle N×1 pumping combiner for high power fiber laser[J]. Frontiers of Optoelectronics, 2016, 9(2): 301.

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