Abstract

Network reliability and scalability are two important factors in metro-access networks. In this paper, a scalable and resilient intersection-ring architecture for metro-access networks is proposed. By adopting intersection-ring topology and expanding modules, the network can not only realize online expansion but also carry out mutual protection between intersection nodes. By employing a dual-fiber structure, the network can support multiple-fault protection and flexible switching of work modes. By using space-division multiplexing technology and transmitting downstream and upstream signals along the same direction, the Rayleigh backscattering noise can be immensely decreased in both normal work mode and protection mode. The performance analyses and simulations verify the feasibility of the proposed architecture.

© 2018 Optical Society of America

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