Amplification reduction in fiber amplifiers due to up-conversion at Er3 concentrations below 1000 ppm |
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| Authors: | P Blixt J Nilsson B Jaskorzynska T Carln s |
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| Institution: |
a Institute of Optical Research and Department of Physics II, Royal Institute of Technology, Stockholm, Sweden
b Ericsson Cables AB, Sundbyberg, Sweden |
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| Abstract: | The parasitic effect of two-ion up-conversion in Er3+ -doped fibers have been investigated. Maximum amplification for eight different Er3+ concentrations have been measured and it is shown that up-conversion drastically reduces amplification for Er3+ concentrations in the range of 140-1680 ppm by weight. We have also measured an up-conversion induced luminescence at 980 nm. By comparison of experimental and simulated characteristics, we obtain an up-conversion coefficient of 10-22 m3/s. |
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