Abstract
Metro area network (MAN) connectivity is rapidly evolving towards a much more dense, complex and diverse scenario to be dynamically addressed with flexible cost-efficient and high-capacity technology and architecture solutions, dealing with an even more open and disaggregated paradigm. In this work, sliceable bandwidth/bitrate variable transceiver (S-BVT) architectures adopting modular approach and suitable photonic technologies (such as VCSEL), enabling to efficiently and dynamically exploit both spectral and spatial dimensions, are discussed, considering design, implementation, cost and flexibility aspects. Recent numerical and experimental results are reported, showing how to enable scalability towards supporting multi-Tb/s connectivity in flexible and dynamic large MAN.
Highlights
Metro area network (MAN) connectivity is rapidly evolving towards a much more dense, complex and diverse scenario, to give support to a myriad of new services and applications, while dynamically adapt to the need for huge capacity/speed as well as high quality of service and instant data access[1]
With polarization division multiplexing (PDM) and spatial division multiplexing (SDM), the supported capacity is improved by a factor of 2M, where the double of the capacity derives from PDM and M is the number of fibers/cores and/or modes used in case of adopting fiber bundles or multicore fibers (MCF) and/or multimode fibers[5, 10, 11]
To assess the support of metro network connectivity adopting the sliceable bandwidth/bitrate variable transceivers (S-BVT) architectures described in Section 2, we evaluated the performance in terms of capacity/reach of a single flow of the S-BVT
Summary
Metro area network (MAN) connectivity is rapidly evolving towards a much more dense, complex and diverse scenario, to give support to a myriad of new services and applications, while dynamically adapt to the need for huge capacity/speed as well as high quality of service and instant data access[1]. This translates in a set of challenging requirements to be satisfied with novel and improved technologies/architectures. Transceiver architectures allowing an optimal network resources usage, including the exploitation of multiple dimensions, for enabling future connectivity towards supporting multi-Tb/s will be presented. The use of vertical cavity surface emitting lasers (VCSELs) will be analyzed as promising option for supporting the connectivity evolution in flexible and dynamic large MAN
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