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Corroboration of a multi-phase screen model
Author(s): Chemist M. Mabena; Teboho Bell; Filippus S. Roux
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Paper Abstract

The solution of the infinitesimal propagation equation for atmospheric propagation of single-photon and entangled quantum states, represented in terms of Laguerre-Gauss modes, which is a discrete orbital angular momentum (OAM) basis, is compared with numerical simulations for the propagation of optical fields that carry OAM in atmospheric turbulence. The numerical simulations are performed using the multi-phase screen model based on the Kolmogorov theory of turbulence. The comparison was done under various turbulence conditions and propagation distances to allow comparison under both weak and strong scintillation conditions. The results show that there is an agreement between the infinitesimal propagation equation and the numerical simulations. Also, we note that in the limit of weak scintillation both methods, the infinitesimal propagation equation and numerical simulations, agree with the predictions of single-phase screen model.

Paper Details

Date Published: 4 March 2019
PDF: 10 pages
Proc. SPIE 10910, Free-Space Laser Communications XXXI, 109101T (4 March 2019); doi: 10.1117/12.2510003
Show Author Affiliations
Chemist M. Mabena, CSIR National Laser Ctr. (South Africa)
Univ. of the Witwatersrand (South Africa)
Teboho Bell, CSIR National Laser Ctr. (South Africa)
Filippus S. Roux, National Metrology Institute of South Africa (South Africa)
Univ. of the Witwatersrand (South Africa)

Published in SPIE Proceedings Vol. 10910:
Free-Space Laser Communications XXXI
Hamid Hemmati; Don M. Boroson, Editor(s)

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