Abstract
The evolution of the 4 × 4 matrix with elements being the scintillation indices of the single-point Stokes parameters of a stationary electromagnetic beam-like optical field in classic, weak atmospheric turbulence is revealed. It is shown that depending on the choice of the source parameters, the source-induced changes in the matrix elements of the propagating beam and those produced by turbulence can be either range-separated or conjoined. For theoretical analysis, the unified theory of coherence and polarization is used together with the extended Huygens-Fresnel integral approach. The results can be of interest for building robust communication and sensing systems operating in the presence of atmospheric fluctuations.
Highlights
The discovery by Hanbury Brown and Twiss of non-trivial correlations in the intensity of spatially separated, fluctuating, classic light fields [1,2] has led to a number of groundbreaking technologies, the most important of which are the stellar interferometry [3] and ghost imaging [4]
In the majority of scenarios, the measured light field is thermal, i.e., obeys the circular Gaussian statistics, and, involves a very simple relation between the field correlations and the intensity correlations, as a consequence of the Gaussian moment theorem [5]. Another area greatly benefiting from the optical intensity correlation analysis is the laser beam interaction with atmospheric turbulence, including a variety of applications, such as remote sensing, classic imaging, and free-space optical communications [6]
The purpose of this paper is to investigate the behavior of the 4 × 4 Hanbury Brown and Twiss correlation matrix in the atmospheric turbulence depending on the source and turbulence parameters
Summary
The discovery by Hanbury Brown and Twiss of non-trivial correlations in the intensity of spatially separated, fluctuating, classic light fields [1,2] has led to a number of groundbreaking technologies, the most important of which are the stellar interferometry [3] and ghost imaging [4]. In the majority of scenarios, the measured light field is thermal, i.e., obeys the circular Gaussian statistics, and, involves a very simple relation between the field correlations and the intensity correlations, as a consequence of the Gaussian moment theorem [5] Another area greatly benefiting from the optical intensity correlation analysis is the laser beam interaction with atmospheric turbulence, including a variety of applications, such as remote sensing, classic imaging, and free-space optical communications [6]. The usefulness of the spatially pre-randomized optical fields, is in the reduction of their intensity fluctuations as compared with those in a beam with the same geometry launched into the same turbulence channel by a laser This idea was employed a number of times for improving the quality of free-space optical communications [13,14,15]
Sign-in/Register to view highlights & summary 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 call
