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Proceedings Paper • Open Access

TESAT laser communication terminal performance results on 5.6Gbit coherent inter satellite and satellite to ground links
Author(s): M. Gregory; F. Heine; H. Kämpfner; R. Meyer; R. Fields; C. Lunde

Paper Abstract

The increasing demand on high speed communication networks has stimulated the development of optical free space data transmission during the last years. TESAT has developed a laser communication terminal (LCT) that fulfills the need of a power efficient system whose capability has been successfully demonstrated at bidirectional space-to-space links and bidirectional space-to-ground links (SGLs) at a data rate of 5.625 GBit/s with a homodyne detection scheme and a BPSK modulation format. In comparison to a direct detection system, the homodyne detection scheme works as a bandpass filter. The transmission is immune to false light and even data transmission with the sun in the receiver field of view (FOV) is possible.

Compared to common RF transmission which is implemented on spacecrafts for data transmission, optical transmission provides not only higher transmission rates (factor 10) but also shows excellent security features since the laser beams directivity making it immune to interception.

Paper Details

Date Published: 20 November 2017
PDF: 6 pages
Proc. SPIE 10565, International Conference on Space Optics — ICSO 2010, 105651F (20 November 2017); doi: 10.1117/12.2309152
Show Author Affiliations
M. Gregory, Tesat Spacecom (Germany)
F. Heine, Tesat Spacecom (Germany)
H. Kämpfner, Tesat Spacecom (Germany)
R. Meyer, DLR (Germany)
R. Fields, Aerospace (United States)
C. Lunde, Aerospace (United States)

Published in SPIE Proceedings Vol. 10565:
International Conference on Space Optics — ICSO 2010
Errico Armandillo; Bruno Cugny; Nikos Karafolas, Editor(s)

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