Open AccessTemporal-frequency spectra for optical wave propagating through non-Kolmogorov turbulence
Author(s) -
Wenhe Du,
Liying Tan,
Jing Ma,
Yijun Jiang
Publication year - 2010
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.18.005763
Subject(s) - turbulence , physics , amplitude , spectral density , atmospheric optics , optics , computational physics , k epsilon turbulence model , power law , kolmogorov microscales , wave turbulence , wave propagation , statistical physics , k omega turbulence model , mechanics , telecommunications , mathematics , statistics , computer science
Nowadays it has been accepted that the Kolmogorov model is not the only possible turbulent one in the atmosphere, which has been confirmed by the increasing experimental evidences and some results of theoretical investigation. This has prompted the scientist community to study optical propagation in non-Kolmogorov atmospheric turbulence. In this paper, using a non-Kolmogorov power spectrum which has a more general power law instead of standard Kolmogorov power law value 11/3 and a more general amplitude factor instead of constant value 0.033, the temporal power spectra of the presentative amplitude and phase effects, irradiance and angle of arrival fluctuations, have been derived for horizontal link in weak turbulence. And then the influence of spectral power-law variations on the temporal power spectrum has been analyzed. It is anticipated that this work is helpful to the investigations of atmospheric turbulence and optical wave propagation in the atmospheric turbulence.