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The population rate and power propagation equations are presented and solved to compare the amplificationperformances of bismuth-based Er~(3+)-doped fiber amplifier (EDFA) pumped by 980-and 1480-nm lasers,respectively.In both single signal and coarse wavelength-division-multiplexing (CWDM) signals inputs,the 1480-nmpumped bismuth-based EDFA provides a larger signal gain than the 980-nm pumped one does,whereas the latter providesa relatively lower noise figure (NF).Comparative results indicate that the 1480-nm pumping scheme is moreadvantageous for bismuth-based EDFA regarding the band width and gain property.
The population rate and power propagation equations are presented and solved to compare the amplification performance of bismuth-based Er ~ (3 +) - doped fiber amplifier (EDFA) pumped by 980-and 1480-nm lasers, wavelength-division-multiplexing (CWDM) signals inputs, the 1480-nmpumped bismuth-based EDFA provides a larger signal gain than the 980-nm pumped one does, the later provides a relatively lower noise figure (NF) .Comparative results indicate that the 1480-nm pumping scheme is more advantageous for bismuth-based EDFA regarding the band width and gain property.