Qiang Ze-xuan, He Sai-ling, Zhang Xu-liang, Shen Lin-fang
Center for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation, Joint Laboratory of Optical Communications, Zhejiang University, Hangzhou 310027, China.
J Zhejiang Univ Sci. 2004 Sep;5(9):1130-4. doi: 10.1631/jzus.2004.1130.
The configuration of the novel three-stage L-band erbium-doped fiber amplifier with very large and flat gain and very low noise figure presented in this paper uses the forward ASE (amplified spontaneous emission) from the first section of the EDF (erbium-doped fiber) and the backward ASE from the third section of the EDF (both serve as the secondary pump sources of energy) to pump the second EDF. To improve the pump efficiency, the power of the pump is split into two parts (with a ratio of e.g. 2:7). The characteristics of this L-band EDFA are studied on the basis of the Giles Model with ASE.
本文所提出的具有非常大且平坦的增益以及非常低的噪声系数的新型三段式L波段掺铒光纤放大器的配置，利用来自掺铒光纤（EDF）第一段的正向放大自发辐射（ASE）以及来自EDF第三段的反向ASE（二者均用作能量的二次泵浦源）来泵浦第二段EDF。为了提高泵浦效率，将泵浦功率分成两部分（例如比例为2:7）。基于带有ASE的吉尔斯模型研究了这种L波段掺铒光纤放大器（EDFA）的特性。
