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5 March 2021 Turbulence-resilient high-capacity free-space optical communication
Ziyi Zhu, Alexander Fyffe, Yiyu Zhou, Gerd Leuchs, Robert W. Boyd, Zhimin Shi
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Proceedings Volume 11701, Complex Light and Optical Forces XV; 1170107 (2021) https://doi.org/10.1117/12.2583256
Event: SPIE OPTO, 2021, Online Only
Abstract
Free space optical communication is a promising means to establish versatile, secure and high-bandwidth communication for many critical point-to-point applications. While the spatial modes of light offer an additional degree of freedom to increase the data rate of an optical link, atmospheric turbulence imposes a serious threat to the data fidelity as it can introduce severe inter-mode crosstalk and consequently data degradation. Here, we introduce a high-dimensional free space communication protocol using vector beams. Our protocol uses the spatial polarization profiles of orthogonal vector vortex beams to represent information levels, and we show both numerically and experimentally that such a protocol can be resilient to moderately strong atmospheric turbulence without the need of any adaptive optics.
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Ziyi Zhu, Alexander Fyffe, Yiyu Zhou, Gerd Leuchs, Robert W. Boyd, and Zhimin Shi "Turbulence-resilient high-capacity free-space optical communication", Proc. SPIE 11701, Complex Light and Optical Forces XV, 1170107 (5 March 2021); https://doi.org/10.1117/12.2583256
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KEYWORDS
Free space optical communications
Atmospheric turbulence
Adaptive optics
Atmospheric optics
Free space
Free space optics
Polarization
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