FAST simulation of bidirectional ground-space optical links with adaptive optics

Ollie J. D. Farley, James Osborn, Matthew J. Townson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Free space optical links between the ground and space can be severely degraded by atmospheric turbulence, resulting in bit errors and signal fades. Adaptive optics (AO) allows partial correction of the phase aberrations induced by atmospheric turbulence, in turn allowing larger apertures and higher bandwidth for the optical link. We present FAST (Fourier domain Adaptive optics Simulation Tool), employing a semi-analytical approach using an analytical Fourier domain AO model. FAST can characterise the distribution of received flux between 10 and 200 times faster than full wave-optical simulations, and can be applied both to downlink and uplink precompensated beams.
Original languageEnglish
Title of host publicationProceedings of SPIE
Subtitle of host publicationFree-Space Laser Communications XXXV
EditorsHamid Hemmati, Bryan S. Robinson
Place of PublicationWashington, US
ISBN (Electronic)9781510659322
ISBN (Print)9781510659315
Publication statusPublished - 25 Apr 2023
Externally publishedYes
EventFree-Space Laser Communications XXXV - San Francisco, United States
Duration: 28 Jan 20233 Feb 2023

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceFree-Space Laser Communications XXXV
Country/TerritoryUnited States
CitySan Francisco

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