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Proceedings Paper • Open Access

Assessment of the effective performance of DPSK vs. OOK in satellite-based optical communications
Author(s): A. Maho; M. Faugeron; A. Le Kernec; K. Elayoubi; M. Sotom

Paper Abstract

This paper reports on the assessment of the communication performance of DPSK- and OOK-based free-space optical (FSO) links in satellite-based applications, including LEO downlinks, LEO inter-satellite links, and feeder links for GEO Satellites. The performance is assessed by means of simulations as well as transmission experiments at 10 Gbps. The impact of optical filter bandwidth, optical delay-line-interferometer accuracy, frequency offset between transmitter laser and receiver, is quantified. OOK performance critically depends on transmitter extinction ratio, and proves robust to Doppler-induced frequency offsets. DPSK is sensitive to any laser wavelength drift and offset with the DLI response. Nevertheless, compensation of this drift is considered manageable, making it possible to maintain the 3dB advantage of DPSK vs. OOK in practical use conditions.

Paper Details

Date Published: 12 July 2019
PDF: 7 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111805T (12 July 2019); doi: 10.1117/12.2536128
Show Author Affiliations
A. Maho, Thales Alenia Space (France)
M. Faugeron, Thales Alenia Space (France)
A. Le Kernec, Thales Alenia Space (France)
K. Elayoubi, IRT Saint Exupéry (France)
M. Sotom, Thales Alenia Space (France)

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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