Abstract
We have studied the effects of preform fabrication procedure and ytterbium and erbium concentrations on the efficiency of excitation transfer from Yb3+ to Er3+ and lasing on erbium transitions in the range 1.53–1.61 μm in phosphosilicate glass fibers. The results indicate that the fabrication of fiber preforms by different MCVD-based processes has no effect on the excitation transfer efficiency. In the ranges 0.07–0.4wt % Er3+ and ∼ 0.4–8 wt % Yb3+ (Yb/Er ratio from ∼ 5 to 40), the excitation transfer efficiency is determined by the ytterbium concentration and is essentially independent of erbium concentration.
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Original Russian Text © M.A. Melkumov, A.Yu. Laptev, M.V. Yashkov, N.N. Vechkanov, A.N. Guryanov, I.A. Bufetov, 2010, published in Neorganicheskie Materialy, 2010, Vol. 46, No. 3, pp. 349–354.
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Melkumov, M.A., Laptev, A.Y., Yashkov, M.V. et al. Effects of Yb3+ and Er3+ concentrations and doping procedure on excitation transfer efficiency in Er-Yb doped phosphosilicate fibers. Inorg Mater 46, 299–303 (2010). https://doi.org/10.1134/S0020168510030167
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DOI: https://doi.org/10.1134/S0020168510030167