Experimental campaign for the propagation and measurement of OAM beams over a 1-km terrestrial range

Jaime A. Anguita*, Carlos Pirela, Jaime E. Cisternas

*Corresponding author for this work

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

Abstract

We present an experimental campaign consisting on the propagation of laser modes with orbital angular momentum (OAM), carried out in our campus, for a total propagation distance of 1 kilometer. In this proceedings article we describe our experiment and describe some preliminary results, using topological charges up to |ℓ| = 45. We also demonstrate that a Shack-Hartmann sensor may be used for OAM sensing in the presence of weak to intermediate turbulence without the help from adaptive optics.

Original languageEnglish
Title of host publicationLaser Communication and Propagation through the Atmosphere and Oceans XI
EditorsJaime A. Anguita, Jeremy P. Bos, David T. Wayne
PublisherSPIE
ISBN (Electronic)9781510654587
DOIs
StatePublished - 2022
EventLaser Communication and Propagation through the Atmosphere and Oceans XI 2022 - San Diego, United States
Duration: 22 Aug 202223 Aug 2022

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12237
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceLaser Communication and Propagation through the Atmosphere and Oceans XI 2022
Country/TerritoryUnited States
CitySan Diego
Period22/08/2223/08/22

Bibliographical note

Funding Information:
We would like to thank Alberto Domínguez, Santiago Vélez, and Francisco Ruiz-Tagle for their valuable engineering support. We also thank masters’ students Ignacio Rojas, Andrés Seguel, and JoséPablo Durandeau for contributing to the campaign with alignment tasks and measurements. This work has been supported by ANID Chile through grant Fondecyt 1210297. A significant part of the experimental equipment and student scholarships have been provided by the Millennium Science Initiative Program (ANID Chile), through grant ICN17-012.

Publisher Copyright:
© 2022 SPIE.

Keywords

  • atmospheric turbulence
  • FSO communications
  • orbital angular momentum
  • Shack-Hartmann sensor

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