Intelligent optical fiber monitoring system based on coherent light

Abstract

The invention discloses an intelligent optical fiber monitoring system based on coherent light. The intelligent optical fiber monitoring system comprises an optical fiber monitoring module, a link performance analysis module and a fault positioning and eliminating module. The system has the advantages that the coherent light technology is applied to the field of optical fiber detection for the first time, real-time on-line monitoring on an optical fiber system is achieved, transmission of optical fiber service data is not affected, meanwhile, historical characteristics of optical fibers can be compared, regular inspection tasks on reserved optical fibers or on-line optical fibers are automatically completed, the attenuation condition of the optical fibers is monitored in real time, the method assists in analyzing the cause of a fault, accurately positioning the distance of a fault point, outputting an optical fiber resource quality information report, and performing scientific early warning, thereby facilitating operation and maintenance personnel to understand the degradation condition of the optical cable, and timely and rapidly repairing and maintaining the optical cable; the opening efficiency of the engineering business is improved; therefore, the fault frequency is reduced, the fault time is shortened, and the communication reliability of the optical cable network is improved.

Description

technical field [0001] The invention relates to the field of optical fiber monitoring, in particular to an intelligent optical fiber monitoring system based on coherent light. Background technique [0002] With the rapid growth of data traffic, as the medium of the information highway, the role of optical fiber communication is becoming more and more important. However, due to the physical characteristics of the optical fiber itself, it is easy to cause faults such as fiber interruption, which will cause huge losses to users. In the face of such a large number of optical fiber communication networks with such complex topological structures, and a large number of optical distribution nodes, how to ensure the stability of the entire optical fiber communication network, monitor the status of the optical communication network, and deal with various faults and problems in the optical fiber in a timely manner, Become the primary problem of optical fiber communication network. ...

AI Technical Summary

Problems solved by technology

This optical fiber monitoring technology generally has time blind areas and attenuation blind areas, so the positioning accuracy is not high, and it is not suitable for long-term real-time monitoring of optical fiber links

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