Open AccessStudies on propagation of laser beam array with initial phase distributions in a turbulent atmosphere
Author(s) -
Weiwei Zheng,
Liqin Wang,
Jing-Ping Xu,
Ligang Wang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.5098
Subject(s) - physics , superposition principle , optics , turbulence , fresnel diffraction , beam (structure) , diffraction , vortex , optical vortex , phase (matter) , atmosphere (unit) , atmospheric optics , computational physics , mechanics , quantum mechanics , meteorology
Based on the coherent superposition principle and the generalized Huygens-Fresnel diffraction integral, the properties of a radial beam array with definite initial phase distributions propagating through a turbulent atmosphere are analytically investigated. It is shown that, when the propagation distance is short, the output intensity distribution will gradually take on a spiral shape, which means an optical vortex. However, under the effect of the atmospheric turbulence, the output vortex property gradually disappears, and changes to a bright-cantered beam without vortex property. Furthermore, the weaker the atmospheric turbulence is, the longer distance the output optical vortex the center-dark beam can propagate over.