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

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 hand...

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Bibliographic Details
Published in:Frontiers of Optoelectronics (Online) 2016-06, Vol.9 (2), p.301-305
Main Authors: Xiao, Qirong, Huang, Yusheng, Sun, Junyi, Wang, Xuejiao, Li, Dan, Gong, Mali, Yan, Ping
Format: Article
Language:English
Subjects:
Biomedical Engineering and Bioengineering
Electrical Engineering
Engineering
Physics
Research Article
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Summary: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 multi-kilowatts level fiber lasers.
ISSN:2095-2759
2095-2767
DOI:10.1007/s12200-016-0609-0