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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 languageEnglish
Title of host publicationProceedings - 2024 24th International Conference on Transparent Optical Networks, ICTON 2024
EditorsFrancesco Prudenzano, Marian Marciniak
PublisherIEEE Computer Society
ISBN (Electronic)9798350377309
DOIs
StatePublished - 2024
Externally publishedYes
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
ISSN (Print)2162-7339

Conference

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

Bibliographical note

Publisher Copyright:
© 2024 IEEE.

Keywords

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

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