Experiments of Orbital Angular Momentum Phase Properties for Long-Distance Transmission
Yu Yao, Xianling Liang, Weiren Zhu and 2 more
IEEE Access · 2019
doi:10.1109/access.2019.2916029 (opens in a new tab)
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Abstract
In this paper, we propose a new method to effectively measure orbital angular momentum (OAM) properties for long-distance transmission. Properties of OAM wavefront in terms of phase and amplitude are measured by rotating the OAM wave antenna and fixing the plane wave antenna as a reference. To verify OAM phase properties for long-distance transmission, experiments are conducted in Tsingtao, China, with 3.7 km and 7.0 km across the Yellow Sea, which demonstrates that vortex phase properties of OAM keep well after long-distance transmission. Meanwhile, periodical properties of OAM waves' phase fronts are the same in different transmission distances.
Abstract licence: CC BY-NC-ND
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