18 November 2014 High-power continuous-wave ytterbium-doped fiber oscillator at 1018 nm
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We have demonstrated a 1018 nm continuous wave fiber oscillator pumped by LDs operating at 976 nm. Three kinds of Ytterbium-doped dual-clad fibers, 15/130 μm fiber, 25/250 μm fiber and 30/250 μm fiber, are employed separately in the experiments. We achieve 67 W total output power with the 15/130 μm fiber for 100 W of pump power with a slope efficiency of 67%. And with the 25/250 μm fiber, 276 W total output power is generated for 372 W of pump power with a slope efficiency of 74%. In the end, 300 W output power with the slope efficiency of 81% is successfully achieved with the 30/250 μm fiber for 372 W of pump power. To the best of our knowledge, this is the highest output ever reached by a dual-clad fiber oscillator at this wavelength that ever reported in open detail.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Renli Zhang, Renli Zhang, Yuhao Xue, Yuhao Xue, Hong Zhang, Hong Zhang, Xiaobo Feng, Xiaobo Feng, Wupeng Gong, Wupeng Gong, Yong Bi, Yong Bi, } "High-power continuous-wave ytterbium-doped fiber oscillator at 1018 nm", Proc. SPIE 9266, High-Power Lasers and Applications VII, 92661E (18 November 2014); doi: 10.1117/12.2071285; https://doi.org/10.1117/12.2071285


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