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séminaire Foton / Enssat (cycle ingénieur Photonique)

« Recent advances in high bit rate optical fiber communication systems »

Gabriel CHARLET (Nokia Bell Labs)

« Recent advances in high bit rate optical fiber communication systems »

le 21 novembre 2017 de 14h à 16h, à l’Enssat de Lannion (amphi 137C)

Since 2006 and the renewed interest in coherent detection associated with digital signal processing, the transported bit rate per wavelength has been increased from 40 Gb/s up to 1 Tb/s. I will present the recent advancements in high bit rate optical communication over fiber optics. Signal processing for spectrally efficient coherent systems will be presented, including phase estimation, timing estimation, forward error correction coding and nonlinear mitigation techniques which are particularly challenging for high order constellations. I will also present recent breakthrough obtained with ultrawide bandwidth semiconductor optical amplifier, as well as solutions to drastically increase the throughput over multimode fibers.

Nokia Bell Labs
91620 Nozay