Gaussian vortex beam modeling for multiplexing in data communication using OAM

Optical vortices carrying orbital angular momentum (OAM) are being explored for improving the overall aggregate capacity along with the spectrum efficacy of data communications systems. The OAM carrying vortex beams provide an additional degree in space division multiplexing consistent with other ph...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-05, Vol.1921 (1), p.12054
Main Authors: Abhyankar, Girish G., Gad, R.S., Panem, Charanarur, Chodankar, Deepak, Naik, G.M.
Format: Article
Language:English
Subjects:
Angular momentum
Data communication
Electron beams
Gaussian beams (optics)
Gaussian vortex beam
Multiplexing
OAM multiplexing
optical vortex
orbital angular momentum (OAM)
Physics
Solid phases
Vortices
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Summary:Optical vortices carrying orbital angular momentum (OAM) are being explored for improving the overall aggregate capacity along with the spectrum efficacy of data communications systems. The OAM carrying vortex beams provide an additional degree in space division multiplexing consistent with other physical dimensions like amplitude, frequency/wavelength, polarization & phase, leading towards continual increase of the overall transmission capacity along with the spectral efficacy through N -dimensional multiplexing. OAM has unlimited modes which are intrinsically orthogonal thus rendering OAM carrying beams to be efficiently multiplexed and subsequently demultiplexed. In this paper we simulate and study the intensity profiles and phase structures of Gaussian vortex beams. The clockwise and anti-clockwise spiraling of the phase structures for mutually opposite values of the topological charge of OAM and also diverging pattern of the phase structure along the direction of propagation are simulated.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1921/1/012054