26 January 2005 All fiber ytterbium-doped fiber grating laser
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Based on requirement of all fiber structure, all fiber Yb-doped fiber grating laser uses double cladding fiber with Yb-doped as gain medium, uses fiber grating as resonance cavity and employs semiconductor laser as pumping source to realize the lasing based on the reverse of Yb ion. We use Bragg fiber grating as the resonance cavity of fiber laser and 970nm LD as pumping source, pump the Yb-doped double cladding fiber with circular inner-cladding. We realized 7.5W single-mode laser output, central wavelength of 1080nm, FWHM of 0.11nm under the pump power of 11.8W. Maxim conversion efficiency is 63.5% and slope efficiency of 46.4%.
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Liang Zhang, Liang Zhang, Li Qin, Li Qin, Jian Zhang, Jian Zhang, Yong-Qiang Ning, Yong-Qiang Ning, Lijun Wang, Lijun Wang, } "All fiber ytterbium-doped fiber grating laser", Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); doi: 10.1117/12.574368; https://doi.org/10.1117/12.574368

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