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文章对全光中继光纤传输系统中掺铒光纤放大器(EDFA)作为提升放大器、线路放大器和前置放大器的监控问题进行了探讨,提出了利用相干光时域反射仪与本地控制单元监测和控制线路EDFA的增益与主备用倒换的方案,该方案可实现对上行和下行的线路EDFA的单端全光监测。
This paper discusses the monitoring problems of EDFA in all-optical relay optical fiber transmission system as a booster amplifier, a line amplifier and a preamplifier, and proposes the monitoring and control of coherent optical time domain reflectometer and local control unit The gain of the line EDFA and the scheme of the main and standby switching, this scheme can realize the single-end all-optical monitoring of the line EDFA of the up and down lines.