Assessment of the effective performance of DPSK vs. OOK in satellite-based optical communications

A. Maho; M. Faugeron; A. Le Kernec; K. Elayoubi; M. Sotom

doi:10.1117/12.2536128

12 July 2019 Assessment of the effective performance of DPSK vs. OOK in satellite-based optical communications

A. Maho, M. Faugeron, A. Le Kernec, K. Elayoubi, M. Sotom

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Proceedings Volume 11180, International Conference on Space Optics — ICSO 2018; 111805T (2019) https://doi.org/10.1117/12.2536128
Event: International Conference on Space Optics - ICSO 2018, 2018, Chania, Greece

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.

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A. Maho, M. Faugeron, A. Le Kernec, K. Elayoubi, and M. Sotom "Assessment of the effective performance of DPSK vs. OOK in satellite-based optical communications", Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111805T (12 July 2019); https://doi.org/10.1117/12.2536128

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KEYWORDS

Free space optics

Satellites

Receivers

Optical filters

Satellite communications

Doppler effect

Optical communications

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