Feasibility study of a Terabit/s GEO-to-ground WDM optical communication link

Veronica Spirito; Giulio Cossu; Ernesto Ciaramella

doi:10.1117/12.2691132

12 July 2023 Feasibility study of a Terabit/s GEO-to-ground WDM optical communication link

Veronica Spirito, Giulio Cossu, Ernesto Ciaramella

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Proceedings Volume 12777, International Conference on Space Optics — ICSO 2022; 127776J (2023) https://doi.org/10.1117/12.2691132
Event: International Conference on Space Optics — ICSO 2022, 2022, Dubrovnik, Croatia

Abstract

Future space communications will transfer huge volumes of data, especially from space to Earth. To this aim, Free Space Optics (FSO) communications are a unique alternative to Radio Frequency (RF), as they offer much higher data rate and can leverage upon existing fiber communication technology. Here, with a realistic approach, we theoretical asses a new solution at 1.6 Tbit/s, based on a Wavelength Division Multiplexing (WDM) communication system enabled by transparent terminals. We quantify the impact of the atmosphere in terms of terminal size and propagation effects. We derive an accurate power budget in realistic implementation options, considering different system parameters and channel conditions, highlighting practical limitations from the optical technology at the transmitter and receiver side, as well as the possible countermeasures.

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Veronica Spirito, Giulio Cossu, and Ernesto Ciaramella "Feasibility study of a Terabit/s GEO-to-ground WDM optical communication link", Proc. SPIE 12777, International Conference on Space Optics — ICSO 2022, 127776J (12 July 2023); https://doi.org/10.1117/12.2691132

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KEYWORDS

Telescopes

Adaptive optics

Atmospheric optics

Wavelength division multiplexing

Receivers

Atmospheric propagation

Transmitters

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