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arXiv:1603.05159

Polarization preservation of partially coherent Hermite-Gaussian beams for multiple-degrees-of-freedom free-space communication

Ji, Ling, Ailin Yang, Xiaofeng Lin, Xian‐Min Jin

Published Mar 16, 2016• 1 citation
arXivHTMLPDF

Abstract

Multiple-degrees-of-freedom free-space communication combining polarization and high-order spatial modes promises high-capacity communication channel. While high-order spatial modes have been widely exploited for dense coding and high-dimensional quantum information processing, the properties of polarization preservation of high-order spatial beams propagating in turbulent atmosphere have not been comprehensively investigated yet. Here we focus on the properties of polarization preservation of partially coherent Hermite-Gaussian beams propagating along different atmospheric turbulence paths. The analytical expressions for the polarization of partially coherent Hermite-Gaussian beams propagating through atmospheric turbulence along different paths have been derived. It is shown that the larger the coherence length is, and the larger the beam order m, n are, the less the polarization is changed. We find that the evolution properties of the polarization in slant-down paths through turbulent atmosphere are similar to the case in free space if the condition zenith angle ξ

DOI
10.48550/arxiv.1603.05159

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