In this paper, the properties of ultra-low loss and large effective area G.654.E fiber were studied, including the optical properties and cabling performance. Based on the tests of the transmission performances of different optical fibers in nonrelay ultra-long haul optical transmission system, practical suggestions for optical fiber selection of electric communication construction were proposed. G.654.E fiber was utilized in practical engineering, verifying the theoretical research and identifying optimal direction and methods. 467 km non-relay ultra-long haul optical transmission was realized, creating a new record in electric communication network.
The national strategy of “East Data West Computing” is in full swing, and the computing power network will become an important infrastructure. The development of computing power network has put forward higher requirements for backbone network and large data centers. To construct optical base of computing power network needs novel optical fiber technology. For backbone transmission networks, the practical application research results of operators and State Grid have fully proved the application value of G.654.E fiber, which also have provided theoretical and practical basis for the large-scale application of G.654.E fiber and the construction of the next generation backbone network.
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