Optimal transport theory for processing and classifying OAM superpositions distorted by turbulence

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Resumen

We propose the use of orbital angular momentum (OAM) states to form modulation symbols in a free-space laser communication link affected by atmospheric turbulence. A collection of superpositions of 2 and 4 active OAM modes are used for transmitting digital information. To sense and decode the data we compare three candidate architectures, based on a Mode Sorter, a Shack-Hartmann and phase flattening holograms. In this work we use concepts of Optimal Transport, particularly the Wasserstein distance and barycenter, for an optimal selection of OAM superpositions and a more appropriate processing of OAM spectra, leading to more accurate detection, achieving a classification error smaller than 1/1000 in intermediate to strong turbulence conditions.

Idioma originalInglés
Título de la publicación alojadaLaser Communication and Propagation through the Atmosphere and Oceans XI
EditoresJaime A. Anguita, Jeremy P. Bos, David T. Wayne
EditorialSPIE
Páginas8
ISBN (versión digital)9781510654587
ISBN (versión impresa)9781510654587
DOI
EstadoPublicada - 2022
EventoLaser Communication and Propagation through the Atmosphere and Oceans XI 2022 - San Diego, Estados Unidos
Duración: 22 ago. 202223 ago. 2022

Serie de la publicación

NombreProceedings of SPIE - The International Society for Optical Engineering
Volumen12237
ISSN (versión impresa)0277-786X
ISSN (versión digital)1996-756X

Conferencia

ConferenciaLaser Communication and Propagation through the Atmosphere and Oceans XI 2022
País/TerritorioEstados Unidos
CiudadSan Diego
Período22/08/2223/08/22

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