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Proceedings Paper

Digital optical feeder links system for broadband geostationary satellite
Author(s): Sylvain Poulenard; Alexandre Mège; Christian Fuchs; Nicolas Perlot; Jerome Riedi; Josep Perdigues
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Paper Abstract

An optical link based on a multiplex of wavelengths at 1.55μm is foreseen to be a valuable solution for the feeder link of the next generation of high-throughput geostationary satellite. The main satellite operator specifications for such link are an availability of 99.9% over the year, a capacity around 500Gbit/s and to be bent-pipe. Optical ground station networks connected to Terabit/s terrestrial fibers are proposed. The availability of the optical feeder link is simulated over 5 years based on a state-of-the-art cloud mask data bank and an atmospheric turbulence strength model. Yearly and seasonal optical feeder link availabilities are derived and discussed. On-ground and on-board terminals are designed to be compliant with 10Gbit/s per optical channel data rate taking into account adaptive optic systems to mitigate the impact of atmospheric turbulences on single-mode optical fiber receivers. The forward and return transmission chains, concept and implementation, are described. These are based on a digital transparent on-off keying optical link with digitalization of the DVB-S2 and DVB-RCS signals prior to the transmission, and a forward error correcting code. In addition, the satellite architecture is described taking into account optical and radiofrequency payloads as well as their interfaces.

Paper Details

Date Published: 24 February 2017
PDF: 8 pages
Proc. SPIE 10096, Free-Space Laser Communication and Atmospheric Propagation XXIX, 1009614 (24 February 2017); doi: 10.1117/12.2255987
Show Author Affiliations
Sylvain Poulenard, Airbus Defence and Space SAS (France)
Alexandre Mège, Airbus Defence and Space SAS (France)
Christian Fuchs, Deutsches Zentrum für Luft- und Raumfahrt e.V. (Germany)
Nicolas Perlot, Fraunhofer-Institut für Nachrichtentechnik Heinrich-Hertz-Institut (Germany)
Jerome Riedi, Univ. des Sciences et Technologies de Lille (France)
Josep Perdigues, European Space Agency (Netherlands)


Published in SPIE Proceedings Vol. 10096:
Free-Space Laser Communication and Atmospheric Propagation XXIX
Hamid Hemmati; Don M. Boroson, Editor(s)

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