Abstract
We report on a single-clad fiber with heavily Yb–Er-doped phosphate core and silicate clad. The calculated core NA is ~0.11. The diffusion is slight between the core and clad due to the small drawing temperature contrast between the phosphate and silicate glass. A strong ASE was obtained with central wavelength of 1534 nm.
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This work is sponsored by Natural Science Foundation of Shanghai (No. 17ZR1434000) and China Postdoctoral Science Foundation (No. 2016M601653).
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Wang, L., He, D., Chen, D. et al. Yb–Er doped composite fiber with silicate clad and phosphate core prepared by stack-and-draw method. Opt Quant Electron 49, 162 (2017). https://doi.org/10.1007/s11082-017-1000-0
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DOI: https://doi.org/10.1007/s11082-017-1000-0