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Proceedings Paper • Open Access

Optical feeder link architectures for very HTS: ground segment
Author(s): Nicolas Girault; Pantelis-Daniel Arapoglou

Paper Abstract

The paper deals with an analysis of Very High Throughput Satellite (VHTS) systems employing optical feeder links. As the capacities of newly announced next generation VHTS systems are exceeding the Terabit/s barrier, a large amount of investment needs to be directed not only to the space segment (as was the case traditionally), but also to the ground segment in support of the feeder links. To reduce this investment, satellite operators are reviewing various options and technologies for the feeder links, among which optical feeder links [1]. In this paper, different approaches are analysed for ground segment networks relying on Optical Ground Stations (OGS), exploring the concept of smart gateway diversity with N active OGS and P redundant ones, like is currently done in VHTS systems with RF feeder links. OGS locations are assessed in terms of aggregate availability and total cost for the satellite operator, which is an essential element for the viability of the VHTS system. Different options are assessed for the distribution of OGS gateway processing functions (local at OGS or centralised), and for their interconnection. The main technical challenges are discussed, identifying which technologies will be required for an operational VHTS system with OGS.

Paper Details

Date Published: 12 July 2019
PDF: 11 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111805M (12 July 2019); doi: 10.1117/12.2536121
Show Author Affiliations
Nicolas Girault, European Space Agency (Netherlands)
Pantelis-Daniel Arapoglou, European Space Agency (Netherlands)


Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

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