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Atmospheric occultation of optical inter-satellite links: coherence loss and related parameters

Perlot, Nicolas (2009) Atmospheric occultation of optical inter-satellite links: coherence loss and related parameters. Applied optics, Vol. 4 (Issue ), pp. 2290-2302.

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Official URL: http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-48-12-2290

Abstract

The Rytov theory is applied to find the wave structure function of a laser beam transmitted from one satellite to another and propagating through the turbulent atmosphere. The phase-screen approximation is used. Taking into account refractive-index anisotropy, outer scale and atmospheric mean-refraction defocusing, we provide expressions of the wave structure function for a spherical wave. The width and time of coherence at the receiver are evaluated. Expression for the beam spread is found using the extended Huygens-Fresnel principle, and beam wander is assessed. Beam wander occurs only for very narrow beams. Links involving low-Earth-orbit and geosynchronous satellites are studied as examples. Finally, conditions where optical tracking is perturbed by the atmosphere are examined.

Document Type:Article
Title:Atmospheric occultation of optical inter-satellite links: coherence loss and related parameters
Authors:
AuthorsInstitution or Email of Authors
Perlot, NicolasUNSPECIFIED
Date:April 2009
Journal or Publication Title:Applied optics
Refereed publication:Yes
In SCOPUS:Yes
In ISI Web of Science:No
Volume:Vol. 4
Page Range:pp. 2290-2302
Status:Published
Keywords:Atmospheric occultation, optical inter-satellite links, turbulence
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Digital Networks
Deposited By: Dr. Nicolas Perlot
Deposited On:17 Apr 2009
Last Modified:12 Dec 2013 20:37

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