Propagation of scalar and vector vortex beams through turbulent atmosphere

Wen Cheng; Joseph W. Haus; Qiwen Zhan

doi:10.1117/12.809138

24 February 2009 Propagation of scalar and vector vortex beams through turbulent atmosphere

Wen Cheng, Joseph W. Haus, Qiwen Zhan

Proceedings Volume 7200, Atmospheric Propagation of Electromagnetic Waves III; 720004 (2009) https://doi.org/10.1117/12.809138
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

Abstract

In this paper, we study and compare the propagation properties of both scalar and vector vortex beams through turbulent atmosphere. The atmosphere turbulence effect is simulated with von Kármán power spectrum model using index of refraction structure parameter, C_n², values ranging from 10^-14 m^-2/3 to 10^-12 m^-2/3. For different propagation distances, the irradiance pattern and the scintillation index are computed for a fundamental Gaussian beam, a scalar vortex with topological charge of +1 and a radially polarized beam under the same turbulence condition. The results demonstrate the advantages of using vector vortex to mitigate atmospheric effects. In addition, it is found by analyzing the polarization pattern of the transmitted vector vortex beams, that they may find applications in free space communications and remote sensing.

Citation Download Citation

Wen Cheng, Joseph W. Haus, and Qiwen Zhan "Propagation of scalar and vector vortex beams through turbulent atmosphere", Proc. SPIE 7200, Atmospheric Propagation of Electromagnetic Waves III, 720004 (24 February 2009); https://doi.org/10.1117/12.809138

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