Performance of turbulence-impaired dense OAM constellations for data modulation

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

Abstract

The increase of data rate and bandwidth efficiency of free-space optical communication links may be supported by the use of dense orbital angular momentum (OAM) states, carrying several information bits per transmission. Using machine-learning decoding, the performance of 32-OAM and 64-OAM signal constellations –designed using 4-state superpositions– are studied using numerical propagation models. Using two candidate architectures for detection –Shack-Hartmann and Mode Sorter– we evaluate the performance of the modulation in a simulated optical atmospheric channel by means of the detection accuracy.

Original languageEnglish
Title of host publicationLaser Communication and Propagation through the Atmosphere and Oceans X
EditorsJaime A. Anguita, Jeremy P. Bos, David T. Wayne
PublisherSPIE
ISBN (Electronic)9781510645066
DOIs
StatePublished - 2021
EventLaser Communication and Propagation through the Atmosphere and Oceans X 2021 - San Diego, United States
Duration: 1 Aug 20215 Aug 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11834
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceLaser Communication and Propagation through the Atmosphere and Oceans X 2021
Country/TerritoryUnited States
CitySan Diego
Period1/08/215/08/21

Bibliographical note

Funding Information:
This work was supported by CONICYT-Chile (FR-1210297) and by ANID – Millennium Science Initiative Program – ICN17-012.

Publisher Copyright:
© 2021 SPIE.

Keywords

  • FSO communications
  • Mode sorter
  • Orbital angular momentum
  • Shack-Hartmann sensor
  • Signal modulation

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