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.
With the rapid development of the electric telecommunication network, the demand for fiber channels is growing day by day. Increasing the number of optical fiber cores has become an inevitable choice for electric telecommunication network construction. If the number of optical fiber cores is increased only by increasing the outer diameter of the optical unit, the structure, weight, mechanical and electrical properties of OPGW will be changed. Therefore, there are strict restrictions on the outer diameter of the OPGW design. It is a visible solution to use small diameter fiber without increasing the outer diameter of optical cell. In this paper, the feasibility and applicability of 200μm G.657.A1 optical fiber applied to the electric telecommunication network are studied. The cable performance of OPGW made by 200μm G.657.A1 optical fiber and the transmission performance of G.657.A1 optical fiber in 10G / 100G ultra-long-haul transmission systems are tested and analyzed, which provide beneficial support and suggestions for the selection of optical fiber and cable in engineering construction of electric telecommunication.
50 Gbps PAM4 transmissions at 850 nm and 908 nm, and 100 Gbps SWDM4 transmissions over OM3/OM4/OM5 fibers were carried out. OM5 fiber can support 50 Gbps PAM4 transmission links of 500 m at 850 nm and 300 m at 908 nm. Another OM5 fiber can support an over 400 m link of 100 Gbps SWDM4 transmission, while the right-tilted OM3/OM4 fibers can only support 100 m and 150 m links, respectively, with similar EMB at 850 nm as the OM5 fiber.
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