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Experimental verification of the limits of optical channel intensity reciprocity

Giggenbach, Dirk and Cowley, William and Grant, Ken and Perlot, Nicolas (2012) Experimental verification of the limits of optical channel intensity reciprocity. Applied Optics, 51 (16), pp. 3145-3152. OSA - Optical Society of America. ISSN 1559-128X.

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Optical data links through the atmosphere suffer from turbulence-induced signal scintillation. In a coaxially-symmetric bidirectional link scenario, the variations of the axial intensities at both ends are correlated. This relation can be used as an inherent feedback mechanism, with negligible delay, to enhance the capacity of the transmission system. By experiment, we show the correlation coefficient of both received signals can reach values close to one over long atmospheric distances, provided the receiver apertures are smaller than specific intensity speckle structures, while the correlation reduces gradually with larger apertures. This allows transmission capacity to be optimized with adaptive transceiver systems that take into account the degree of correlation.

Document Type:Article
Title:Experimental verification of the limits of optical channel intensity reciprocity
AuthorsInstitution or Email of Authors
Giggenbach, DirkDLR
Cowley, WilliamITR South Australia
Grant, KenDSTO South Australia
Perlot, NicolasDLR
Date:22 May 2012
Journal or Publication Title:Applied Optics
Refereed publication:Yes
In Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 3145-3152
Publisher:OSA - Optical Society of America
Series Name:Applied Optics
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):W - Vorhaben Multimedia Satellitennetze (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Digital Networks
Deposited By: Dr.-Ing. Dirk Giggenbach
Deposited On:20 Jun 2012 08:41
Last Modified:25 Nov 2015 05:03

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