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Proceedings Paper • Open Access

Digital and analogue optoelectronic links for intrasatellite communications
Author(s): J. Blasco; O. Navasquillo; C. Sáez

Paper Abstract

The limitations of the current copper harness used for analogue and digital intrasatellite communications are clear: high mass, thick shielded cables and EMI susceptibility. Within this scenario fiber optic has been identified as candidate to overcome copper cables limitations and improve transmission performances. DAS Photonics have developed suitable solutions to replace the copper cables used in satellite harnessing for analogue and digital communications. For digital links DAS has solutions to substitute the copper cables for control buses application (MIL-STD-1553 or CAN BUS) and point-to-point links (i.e. SpaceWire). At this moment the first flight units for digital links have been developed and submitted to validation campaigns, at system and component level with successful results. Two representative models (two full duplex links @1Mbps for bus communications and two full duplex links @100 Mbps for point-to-point links) are going to be included in Alphasat TDP8 to prove their behavior in a real in-orbit environment. For analogue links DAS has a wide range of solutions covering high performance transmissions of signals from baseband up to frequencies in excess to 40 Ghz. Currently DAS is involved in the development of similar optical links for different on-board applications. For example for some Science or Earth Observation instruments where the EMI immunity become a basic requirement that shall be guaranteed for a successful implementation of the mission, this technology can also bring advantages to the distribution of LO signals with negligible phase noise degradation.

Paper Details

Date Published: 5 September 2019
PDF: 7 pages
Proc. SPIE 10565, International Conference on Space Optics — ICSO 2010, 105655X (5 September 2019); doi: 10.1117/12.2552427
Show Author Affiliations
J. Blasco, DAS Photonics (Spain)
O. Navasquillo, DAS Photonics (Spain)
C. Sáez, DAS Photonics (Spain)

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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