Robust coherent FSO using ultrashort pulses

Eyal Wohlgemuth, Roi Lesnik, Roi Cohen, Ido Attia, Florian Emaury, Thibault Michel, Olivier Jacques-Sermet, Pu Jian, Ran Vered, Dan Sadot

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In free-space optical (FSO) feeder links, atmospheric turbulence causes fluctuations that significantly degrade link performance. We present a novel communication technique aimed at mitigating turbulence-induced intensity fluctuations and phase distortions, while enabling the use of dual-polarization high-order coherent modulation schemes. The technique involves transmitting ultra-short pulses through a turbulent atmosphere using a detection scheme known as a dynamic coherent all-optical matched filter. Simulation and experiments have demonstrated proof of concept, showing a dramatic improvement of more than 8.5 dB in the link budget.

Original languageAmerican English
Title of host publicationProceedings - 2024 24th International Conference on Transparent Optical Networks, ICTON 2024
EditorsFrancesco Prudenzano, Marian Marciniak
ISBN (Electronic)9798350377309
DOIs
StatePublished - 1 Jan 2024
Event24th International Conference on Transparent Optical Networks, ICTON 2024 - Bari, Italy
Duration: 14 Jul 202418 Jul 2024

Publication series

NameInternational Conference on Transparent Optical Networks

Conference

Conference24th International Conference on Transparent Optical Networks, ICTON 2024
Country/TerritoryItaly
CityBari
Period14/07/2418/07/24

Keywords

  • Free-space optics
  • coherent detection
  • fading channels
  • feeder links
  • ultra-short pulses

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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