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两段级联掺铒光纤放大器的放大特性 被引量:2

Amplification characteristics of the two-stage erbium doped fiber amplifier
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摘要 采用Giles速率方程模型,建立了980nm泵浦带光隔离器的两段级联掺铒光纤放大器的传输方程,通过数值模拟计算,分析了增益、噪声系数、输出信号功率与泵浦功率、输入信号功率等参数之间的关系,结果表明小信号增益比普通单段型光纤放大器提高了3dB以上,噪声系数降低了1 0dB以上,高增益(45dB)和接近量子极限噪声系数(3 2dB)可同时达到. The rate equation model is set up for analyzing twostage erbiumdoped fiber amplifiers(EDFA). The isolator within EDFA suppresses the backward propagating amplified spontaneous emission and improves the gain and noise characteristics as well as the output signal power characteristics. It is shown that a high gain (45?dB) and a lower noise figure (32?dB) can simultaneously be achieved.
出处 《西安电子科技大学学报》 EI CAS CSCD 北大核心 2003年第3期421-425,共5页 Journal of Xidian University
基金 国家自然科学基金资助项目(90104012)
关键词 掺铒光纤放大器 增益 噪声系数 两段级联 光隔离器 EDFA erbium-doped fiber amplifier gain noise figure
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参考文献7

  • 1马晓明.带光隔离器的掺铒光纤放大器性能分析[J].光子学报,2002,31(2):178-182. 被引量:10
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二级参考文献7

  • 1[1]Zervas N,Laming R I,Payne D N.Trade-off between gain efficiency and noise figure in an optimized fiber amplifier.OFC′92 Technical Digest,San Jose,CA,1992:148~149
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共引文献9

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