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The dynamicity of today's optical networks is far from its potential. Optical components, such as fast-tunable lasers or semiconductor optical amplifiers, can react on a nanosecond time scale, while the reconfiguration time of optical networks is many orders of magnitude larger, normally above a hundreds of milliseconds timescale. In this work, we address this gap with real-time control plane strategies that enhance the responsiveness of optical networks, specifically in the context of time-critical applications where service determinism is of paramount importance. This context represents an additional challenge since the infrastructure necessary to provide time-wise guarantees increases the complexity of the system under control. We describe in detail the real-time control plane for deterministic and dynamic networks and assess its value through experimental evaluation for the first time to our knowledge of a complete real-time control plane within a multinetwork segment testbed. We prove submillisecond overall reconfiguration time for multinetwork segment environments spanning distances of the order of tens of kilometers. [ABSTRACT FROM AUTHOR]

Today's network infrastructure evolves into two seemingly opposite directions: cloudification centralizes functions that used to be distributed for economies of scale, at the expense of latency, while latency-constrained applications are surging. This calls for a new architecture capable of distributed computing: The Edge Cloud network. Future 5G applications will impose strict latency and dynamicity requirements on the Edge Cloud, in intra- and inter-data center networks. The Edge Cloud needs a network infrastructure able to deliver: low latency (∼microseconds), deterministic data delivery in time (∼nanoseconds jitter), and dynamic reconfiguration (∼milliseconds) between objects (antennas, robots) in data centers or across data centers, through a fronthaul network. In this paper, we propose, implement, and demonstrate a deterministic dynamic network based Edge Cloud network. On a real-time testbed, we achieve network slicing, low, deterministic latency of only tens of microseconds per-application (per-flow), when competing technologies cannot provide per-flow guarantee. We also show that the network can be dynamically reconfigured at the millisecond timescale. [ABSTRACT FROM AUTHOR]

We report a novel coherent optical OFDM transponder approach capable of recovering microsecond-scale data-burst while adapting to tight filtering constraints present in optical slot switched intradatacenter networks. Filtering effects in such large node-count environments are reviewed. The CO-OFDM performance is experimentally investigated while crossing a long cascade containing up to 100 nodes. The results are compared to the typical Nyquist pulse-shaped approach. CO-OFDM signaling shows 40% extended reach, 50 Gb/s higher gross average rate, and >4 GHz extra detuning tolerance than Nyquist pulse-shaped signals. [ABSTRACT FROM PUBLISHER]