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Theoretical and experimental study of signal identification in wireless data transmission with using light beams with fractional orbital angular momentum

Alexey A. Kovalev
Image Processing Systems Institute of the RAS – Branch of FSRC “Crystallography & Photonics” of the RAS

Alexey P. Porfirev
Samara University

Abstract

Here, we study, both theoretically and experimentally, light beams with fractional orbital angular momentum (OAM) composed of two different Laguerre-Gaussian (LG) beams. Superposition coefficients are chosen so that the whole superposition has the given OAM value. It is found that transmission of 10 different signals by using two LG beams with the OAM 1 and 3 allows adopting nearly twice smaller receiver than in the case of using LG beams with OAM from 1 to 10, whereas the signals are still correctly identified at the receiver.

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Alexey Kovalev
Image Processing Systems Institute of the RAS – Branch of FSRC “Crystallography & Photonics” of the RAS
Russia

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