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Diode-pumped 1018-nm ytterbium-doped double-clad fiber laser |
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| Authors: | Zhen Li Jun Zhou Bing He Xijia Gu Yunrong Wei Jingxing Dong Qihong Lou Shanghai Key Laboratory of All Solid-State Laser Applied Techniques |
| Institution: | Zhen Li1,2,Jun Zhou1,Bing He1,Xijia Gu 3,Yunrong Wei1,Jingxing Dong 1,and Qihong Lou 1 1 Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 Department of Electrical and Computer Engineering,Ryerson University,Toronto M5B2K3,Canada |
| Abstract: | We report a 1 018-nm ytterbium-doped double-clad fiber laser pumped by 970-nm diode. A pair of fiber Bragg gratings with reflectivities of 99.9% and 9% at a center wavelength of 1 018.9 nm are employed as cavity mirrors. The ytterbium-doped double-clad fiber is a 2.6-m-long Liekki fiber. Laser output power of 7.5 W at 1 018 nm is obtained under the pump power of 59.2 W. The overall slope efficiency of the fiber laser is about 16%. This low slope efficiency is mainly due to the incomplete absorption of the p... |
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