Séminaire ICE : Recent advances in submarine systems
To sustain the ceaseless traffic growth in optical fiber communications, submarine optical transport systems constitute the backbone infrastructure for telecommunications operators and web-scale players around the globe, with 99% of trans-continental data carried over undersea communication systems. Capacities in undersea systems have increased by 5 orders of magnitude since their first deployments. Maximizing the per-fiber capacity through the continual increase of per channel bit-rate has been the historical trend in submarine systems., primarily thanks to the advent of wavelength division multiplexing (WDM) technologies and coherent systems.that enabled to boost the spectral efficiency through the introduction of channel coding innovations Recently, the increase of per fiber capacity has slowed down and new paradigms for subsea line system architectures have emerged to answer the demand for an exponential growth in throughput. The adoption of the spatial division multiplexing (SDM) strategy has reached a consensus in the subsea industry and has become the path toward Pb/s cables and beyond.in the coming years.