Affiliation:
1. Northwest University
2. China Academy of Space Technology
3. Northwestern Polytechnical University
Abstract
The analytical formula of the probability density of a single orbital angular momentum (OAM) mode for pin-like optical vortex beams (POVBs) in turbulent atmosphere is derived. Its OAM spectrum in the receiving plane is obtained by the numerical calculation. For comparison, the OAM spectrum of commonly Gaussian vortex beams is showed, too. Those results show that POVBs show good performance on resisting the cross talk of the OAM mode induced by the turbulence in some cases, such as smaller radius of the receiving aperture, longer propagation distance, and stronger turbulence. Our finding has application in free-space optical communication based on the OAM mode.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Natural Science Basic Research Program of Shaanxi Province
Innovation Group of Jinan
Local Science and Technology Development Project of the Central Government
Subject
Computer Vision and Pattern Recognition,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Cited by
6 articles.
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