Abstract

Intensity fluctuations of asymmetrical optical beams are examined when such beams propagate through anisotropic turbulence. Anisotropic turbulence is modeled by non-Kolmogorov von Kármán spectrum. The variations of the scintillation index are observed against the changes in the asymmetry factor of the Gaussian beam, power law exponent of non-Kolmogorov spectrum, anisotropic factors in the transverse direction, and the link length. It is found that for all the conditions, asymmetry in the optical beam is a disadvantage but the anisotropy in the atmosphere is an advantage for reducing the intensity fluctuations in an optical wireless communications link operating in the atmosphere.

© 2016 Optical Society of America

Scintillations of higher order laser beams in anisotropic atmospheric turbulence

Yahya Baykal, Yujuan Luo, and Xiaoling Ji
Appl. Opt. 55(33) 9422-9426 (2016)

Modified anisotropic turbulence refractive-index fluctuations spectral model and its application in moderate-to-strong anisotropic turbulence

Linyan Cui, Bindang Xue, and Fugen Zhou
J. Opt. Soc. Am. A 33(4) 483-491 (2016)

Propagation properties of an optical vortex carried by a Bessel–Gaussian beam in anisotropic turbulence

Mingjian Cheng, Lixin Guo, Jiangting Li, and Qingqing Huang
J. Opt. Soc. Am. A 33(8) 1442-1450 (2016)

Inner scale effect on scintillation index of flat-topped beam in non-Kolmogorov weak turbulence

Zhihong Zeng, Xiujuan Luo, Aili Xia, Yu Zhang, and Bei Cao
Appl. Opt. 54(10) 2630-2638 (2015)

Intensity fluctuations of flat-topped beam in non-Kolmogorov weak turbulence

Hamza Gerçekcioğlu and Yahya Baykal
J. Opt. Soc. Am. A 29(2) 169-173 (2012)