Abstract
The higher-order intensity moments of optical beams propagating through atmospheric turbulence are studied in the paper. The method to derive higher-order intensity moments in atmospheric turbulence is proposed, and the simple expressions for intensity moments up to the fourth-order are derived. The results obtained in this paper are general, which can reduce to higher-order intensity moments of an arbitrary optical beam propagating in both free space and turbulence. Taking the Gaussian beam for example, the propagation of the kurtosis parameter in atmospheric turbulence is studied. It is shown that the kurtosis parameter of Gaussian beams is not a propagation invariant in atmospheric turbulence, which depends on propagation distance, waist width, inner and outer scales of turbulence and refraction index structure constant. This result is different from that obtained by using the quadratic approximation of Rytov’s phase structure function or the strong fluctuation condition of turbulence. The reasonable explanations for the differences are given in this paper.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
