Average intensity and spreading of cylindrical vector vortex beams in turbulent atmosphere

Mingjian Cheng; Lixin Guo; Jiachao Li; Jiangting Li; Xu Yan

doi:10.1117/12.2325161

7 November 2018 Average intensity and spreading of cylindrical vector vortex beams in turbulent atmosphere

Mingjian Cheng, Lixin Guo, Jiachao Li, Jiangting Li, Xu Yan

Proceedings Volume 10787, Environmental Effects on Light Propagation and Adaptive Systems; 107870N (2018) https://doi.org/10.1117/12.2325161
Event: SPIE Remote Sensing, 2018, Berlin, Germany

Abstract

Analytical formula for the average intensity of cylindrical vector vortex beams propagation in a non-Kolmogorov turbulent atmosphere is derived based on extended Huygens-Fresnel diffraction integral and be used to explore the evolution of the turbulence-induced spreading. For comparison, the corresponding results of the scalar vortex beams are compiled together. Scalar vortex beam can keep its original intensity pattern in the short propagation distance and evolve into the Gaussian-like beam with the increase of the propagation distance and turbulence structure parameter, and the decrease of power spectrum index, under the influence of atmospheric turbulence. An example illustrates the fact that, radially polarized vortex beams are more resistant to atmospheric turbulence than scalar vortex beams based on the view of disappearing characteristic of hollow structure. A radially polarized vortex beam has a better performance on the reduction of turbulence-induced beam spreading effects than its scalar counterpart. This indicates the potential advantages of using vector vortex to mitigate atmospheric effects and enable a more robust free space communication channel with longer link distance.

Conference Presentation

Citation Download Citation

Mingjian Cheng, Lixin Guo, Jiachao Li, Jiangting Li, and Xu Yan "Average intensity and spreading of cylindrical vector vortex beams in turbulent atmosphere", Proc. SPIE 10787, Environmental Effects on Light Propagation and Adaptive Systems, 107870N (7 November 2018); https://doi.org/10.1117/12.2325161

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