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一种穿越EDFA的长途多跨段光纤监测技术
Authors
任晓林
喻杰奎
+6 more
张谱
方波
易水寒
李蔚
王强
黄华林
Publication date
1 January 2019
Publisher
《光通信研究》编辑部
Doi
Cite
Abstract
针对现有的光时域反射仪(OTDR)在监测带有掺铒光纤放大器(EDFA)的长途多跨段光纤链路时,为克服EDFA增益的波动需增加一个额外的补光来保持功率稳定的问题,文章基于线性调频OTDR提出了一种无需补光穿越EDFA的长途多跨段光纤监测技术。该技术利用线性调频准连续光作为探测光,可以避免EDFA增益的波动。同时通过分数域傅里叶滤波来去除级联EDFA累积的自发辐射白噪声,从而提高接收信号的信噪比。实验结果表明,该技术能够准确地测出中长途多跨段光纤链路中EDFA和连接点处的反射事件
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Last time updated on 26/01/2023