Comparative investigation on amplifying performance between 980 nm and 1480 nm pumped bismuth-based EDFA  

作　　者：周亚训 盖娜 陈芬 杨高波 

机构地区：[1] College of Information Science and Engineering, Ningbo University, Ningbo 315211, China

出　　处：《中国激光》2009年第3期558-563,共6页Chinese Journal of Lasers

基　　金：supported by the Natural Science Foundation of Zhejiang Province (Y107070);the Natural Science Foundation of Ningbo City (2006A610026);sponsored by K. C. Wong Magna Fund in Ningbo University

摘　　要：The population rate and power propagation equations are presented and solved to compare the amplification performances of bismuth-based Er3+-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-nm pumped bismuth-based EDFA provides a larger signal gain than the 980-nm pumped one does,whereas the latter 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.The population rate and power propagation equations are presented and solved to compare the amplification performances of bismuth-based Er3+-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-nm pumped bismuth-based EDFA provides a larger signal gain than the 980-nm pumped one does, whereas the latter 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.

关 键 词：optical communications AMPLIFICATION PERFORMANCES rate EQUATIONS power propagation EQUATIONS bismuth-based EDFA 

分 类 号：TN929.11[电子电信—通信与信息系统]