Open AccessLight sources generating self-splitting beams and their propagation in non-Kolmogorov turbulence
Author(s) -
Zhangrong Mei
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.013029
Subject(s) - physics , optics , turbulence , degree of coherence , coherence (philosophical gambling strategy) , gaussian , beam (structure) , free space , huygens–fresnel principle , atmospheric turbulence , coherence length , free space optical communication , light beam , modulation (music) , atmospheric optics , computational physics , optical communication , quantum mechanics , meteorology , superconductivity , acoustics
A class of random sources producing far fields self-splitting intensity profiles with variable spacing between the x and y directions is introduced. The beam conditions for ensuring the sources to generate a beam are derived. Based on the derived analytical expression, the evolution behavior of the beams produced by these families of sources in free space and turbulence atmospheric are explored and comparatively analyzed. By changing the modulation parameters n and m, the degree of coherence of Gaussian Schell-model source in the x and y directions are modulated respectively, and then the number of splitting beams and the spacing between splitting beams can be adjusted. It is illustrated that the self-splitting intensity profile is stable when beams propagate in free space, but they eventually transformed into a Gaussian profiles when it passes at sufficiently large distances from its source through the turbulent atmosphere.