Application of OLP Optical Line Protection Technology
917 2022-01-10
With the rapid development of data and 3G services, the application of high-speed digital switching technology and dense wavelength division multiplexing is becoming more and more extensive, which makes more and more information services concentrate on fewer nodes and lines. How to better ensure the security of the transmission line is particularly important in the construction of the current optical communication network. At present, among many optical network protection methods, OLP has the advantages of short switching time, fast response speed, maintaining optical path status after power failure, and being transparent to transmitted data, and has been widely used in high-speed optical transmission networks. The optical line protection system is a long-distance optical transmission network protection system with important practical significance based on the modern communication millisecond optical switch. As a new research field of optical transmission technology, it has very broad application prospects and has attracted great attention from the IT industry and academia.

The optical line protection system consists of optical line protection equipment and operation and maintenance terminals, which can realize functions such as optical power monitoring, automatic switching of optical paths, and network management. In the optical communication network, OLP monitors the optical power on the working optical fiber and the standby optical fiber in real time. When the optical power value on the current working optical fiber is lower than the set switching threshold, it will issue an alarm and automatically switch to the standby optical fiber. Realize the protection of optical transmission system lines. OLP can simply and economically form protection schemes for various paths and trunk lines, and can also protect various networks that require optical path switching, so as to form a non-blocking, high-reliability, safe, flexible, and disaster-resistant optical communication .



System characteristics
1. Automatic instantaneous switching without human intervention
2. Real-time monitoring of the luminous power of network nodes
3. Reduce various losses caused by network node failures
4. Increase the reliability of network transmission and improve the network quality of operators
5. Arbitrarily schedule active and standby working routes/working devices on the premise of ensuring that the network services of other sites are not blocked