Malik, M., O’Sullivan, M., Rodenburg, B., Mirhosseini, M., Leach, J., Lavery, M.P.J., Padgett, M.J. and Boyd, R.W. (2012) Influence of atmospheric turbulence on optical communications using orbital angular momentum for encoding. Optics Express, 20(12), p. 13195. (doi: 10.1364/OE.20.013195)
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Publisher's URL: http://dx.doi.org/10.1364/OE.20.013195
Abstract
We describe an experimental implementation of a free-space 11-dimensional communication system using orbital angular momentum (OAM) modes. This system has a maximum measured OAM channel capacity of 2.12 bits/photon. The effects of Kolmogorov thin-phase turbulence on the OAM channel capacity are quantified. We find that increasing the turbulence leads to a degradation of the channel capacity. We are able to mitigate the effects of turbulence by increasing the spacing between detected OAM modes. This study has implications for high-dimensional quantum key distribution (QKD) systems. We describe the sort of QKD system that could be built using our current technology.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Lavery, Professor Martin and Padgett, Professor Miles |
Authors: | Malik, M., O’Sullivan, M., Rodenburg, B., Mirhosseini, M., Leach, J., Lavery, M.P.J., Padgett, M.J., and Boyd, R.W. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Optics Express |
Publisher: | Optical Society of America |
ISSN: | 1094-4087 |
ISSN (Online): | 1094-4087 |
Published Online: | 25 May 2012 |
Copyright Holders: | Copyright © 2012 The Optical Society of America |
First Published: | First published in Optics Express 20(12):13195 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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