Algorithmic decoding of dense OAM signal constellations for optical communications in turbulence

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dc.coverageDOI: 10.1364/OE.455425
dc.creatorAnguita, Jaime A.
dc.creatorCisternas, Jaime E.
dc.date2022
dc.date.accessioned2025-11-18T19:48:35Z
dc.date.available2025-11-18T19:48:35Z
dc.description<p>We demonstrate an optical detection and decoding strategy to increase the information rate and spectral efficiency of free-space laser communication links affected by turbulence by means of dense orbital angular momentum (OAM) modulation. Using three candidate receiver architectures–based on a Shack-Hartmann sensor, a Mode Sorter, and a complex conjugate projection scheme as a base case–we demonstrate an algorithmic classification system based on the received OAM spectra produced by these architectures. This classification scheme allows low-error-rate data transmission in turbulence using 16-OAM, 32-OAM, and 64-OAM symbol constellations, with OAM states between −20 and 20. We evaluate and compare their performance under weak to strong atmospheric turbulence conditions using an accuracy metric and confusion matrices.</p>eng
dc.identifierhttps://investigadores.uandes.cl/en/publications/6baae2e5-be20-4fa9-86a6-02e37be6e2f1
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/55635
dc.languageeng
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourcevol.30 (2022) date: 2022-04-11 nr.8 p.13540-13555
dc.subjectDecoding
dc.subjectOptical communication
dc.titleAlgorithmic decoding of dense OAM signal constellations for optical communications in turbulenceeng
dc.typeArticleeng
dc.typeArtículospa
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