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一种新型宽带EDFA及其实验研究
Authors
卜勤练
孙军强
+3 more
邓韬
黄宣泽
龙浩
Publication date
1 January 2005
Publisher
《光通信研究》编辑部
Doi
Cite
Abstract
文章提出了一种基于三端口增益平坦滤波器、且在拓扑结构上不同于以往并行或串行结构的掺铒光纤放大器(EDFA)的新结构。理论模拟显示,同常规的并行结构EDFA相比,该新型结构在保证C波段EDFA性能的同时亦可将L波段掺铒光纤(EDF)用量减少48%以上,改善L波段泵浦效率55%以上。实验中,我们在C波段使用两只输出功率分别为106.9和109.6 mW的980 nm泵浦激光器,两段EDF的长度分别为8.5和9.6 m,在L波段我们仅用1只80 mW的1 480 nm泵浦激光器,EDF长度为19.8 m。试验结果显示,在C+L波段内得到的信号增益>23 dB,增益平坦度<0.6 dB,噪声指数在C和L波段内分别<4.4 dB和5.6 dB
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Last time updated on 26/01/2023