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Proceedings Paper • Open Access

Optoelectronic link for optical satellite harnessing substitution in space communications
Author(s): Julián Blasco; Carlos Vernich; Sonia de la Rosa; Ma. Ángeles Esteban; Manuel José Méndez

Paper Abstract

The current space harness has limitations associated with the use of copper cables in the intra-satellite networks: mass, volume and limited data rate for a given link distance. To overcome these limitations the space community has identified fibre optics as a desired solution for payload and potentially for platform applications. EADS CASA Espacio and DAS Photonics have already been working developing an opto electronic conversion module to use fibre optic in control buses (MIL-STD-1553 and CAN BUS) and point-to-point links (SpaceWire, clocks, AOCS, TM/TC…) to serve as a drop–in replacement for present copper solutions. The mechanical design was done to fit conventional connectors plus backshell dimensions with similar mass. The use of optical fibre instead of copper allows for mass reduction of 25% in typical satellite. All of Engineering Model's (EM) employ 850 nm vertical cavity surface lasers, GaAs PIN photodiodes, radhard graded index multimode fibre (50/125 μm), space qualified optical and electrical connectors with all materials and processes suitable for space applications All modules survived the test campaign without performance degradation or failures. Based on test results, the transceivers are promising candidates to substitute copper harness in the short term, for communication protocols used in satellites at low and medium data rates.

Paper Details

Date Published: 12 January 2018
PDF: 7 pages
Proc. SPIE 10566, International Conference on Space Optics — ICSO 2008, 1056663 (12 January 2018); doi: 10.1117/12.2308283
Show Author Affiliations
Julián Blasco, DAS Photonics (Spain)
Carlos Vernich, DAS Photonics (Spain)
Sonia de la Rosa, DAS Photonics (Spain)
Ma. Ángeles Esteban, EADS CASA Espacio (Spain)
Manuel José Méndez, EADS CASA Espacio (Spain)

Published in SPIE Proceedings Vol. 10566:
International Conference on Space Optics — ICSO 2008
Josiane Costeraste; Errico Armandillo; Nikos Karafolas, Editor(s)

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