We describe an innovative data transmission scheme exploiting optical vortices to multiplex and demultiplex independent data channels in a standard asynchronous laser link. We report extensive results of the proof of concept of the method, successfully used to transmit two parallel ASCII strings, demultiplexed and decoded in the far field of the radiation beam. A phase locked two arms interferometer is proved to be effective even accessing a small portion of the beam only. Results prove the robustness and reliability of the method to perform dense-code free space transmissions over long distances even in presence of wavefront distortions. Applications and the extension to a larger number of parallel channels are discussed.

Dense-code free space transmission by local demultiplexing optical states of a composed vortex / B. Paroli, M. Siano, M.A.C. Potenza. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 29:10(2021 May 10), pp. 14412-14424. [10.1364/OE.417772]

Dense-code free space transmission by local demultiplexing optical states of a composed vortex

B. Paroli
Primo
Membro del Collaboration Group
;
M. Siano
Secondo
Membro del Collaboration Group
;
M.A.C. Potenza
Ultimo
Membro del Collaboration Group
2021

Abstract

We describe an innovative data transmission scheme exploiting optical vortices to multiplex and demultiplex independent data channels in a standard asynchronous laser link. We report extensive results of the proof of concept of the method, successfully used to transmit two parallel ASCII strings, demultiplexed and decoded in the far field of the radiation beam. A phase locked two arms interferometer is proved to be effective even accessing a small portion of the beam only. Results prove the robustness and reliability of the method to perform dense-code free space transmissions over long distances even in presence of wavefront distortions. Applications and the extension to a larger number of parallel channels are discussed.
Settore FIS/03 - Fisica della Materia
10-mag-2021
Article (author)
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/860505
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