We have demonstrated a high-performance Er3+/Ce3+codoped tellurite fiber amplifier and tunable fiber laser using a dual-pumping scheme. The short 22-cm Er3+/Ce3+ion codoped fiber exhibits a net gain of 28 dB at 1558 nm, a wide positive net gain bandwidth of 122 nm, and a noise figure of 4.1 dB. Finally, a widely tunable Er3+/Ce3+codoped tellurite fiber ring laser with a tuning range of 83 nm is demonstrated.
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Dong et al. (2011) studied this question.
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