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Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path

Perlot, Nicolas and Giggenbach, Dirk and Henniger, Hennes and Horwath, Joachim and Knapek, Markus and Zettl, Karl (2006) Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path. In: Proceedings of SPIE -- Volume 6304, 63041O-1-63041O-10. SPIE Optical Press. Free-Space Laser Communications VI, 2006-08-15 - 2006-08-17, San Diego, California, USA. ISBN 0-8194-6383-3. ISSN 0277-786X

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An optical link has been established between the Canary Islands La Palma and Tenerife. A 1064-nm transmitting laser was located on La Palma whereas a BPSK communication receiver and measurement instruments were installed in ESA's OGS on Tenerife. Beside the demonstration of a high-data-rate coherent signal transmission, the goal of the experiment was to measure the effects of the atmosphere on the beam propagation in order to estimate its impact on optical links. Wavefront distortions have been investigated by means of a DIMM instrument and scintillation was observed by imaging the pupil of the OGS telescope on a CCD camera. Strong scintillation was observed during the entire campaign with scintillation peaks at sunsets and sunrises, and saturation at about noon. Because of the narrowness of the beam (10-μrad divergence), beam wander has been a serious issue. Statistical results are compared with theory.

Document Type:Conference or Workshop Item (Speech)
Title:Measurements of the Beam-Wave Fluctuations over a 142-km Atmospheric Path
AuthorsInstitution or Email of Authors
Perlot, NicolasUNSPECIFIED
Giggenbach, DirkUNSPECIFIED
Henniger, HennesUNSPECIFIED
Horwath, JoachimUNSPECIFIED
Date:August 2006
Journal or Publication Title:Proceedings of SPIE -- Volume 6304
Refereed publication:Yes
In ISI Web of Science:No
Page Range:63041O-1-63041O-10
SPIE-The International Society for Optical Engineering, UNSPECIFIED
Publisher:SPIE Optical Press
Keywords:Free-space optics, optical turbulence, wavefront distortions, scintillation, KNOCGOP
Event Title:Free-Space Laser Communications VI
Event Location:San Diego, California, USA
Event Type:international Conference
Event Dates:2006-08-15 - 2006-08-17
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: Florian Moll
Deposited On:27 Aug 2007
Last Modified:12 Dec 2013 20:26

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