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17 March 2023 FAST simulation of bidirectional ground-space optical links with adaptive optics
Ollie J. D. Farley, James Osborn, Matthew J. Townson
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Proceedings Volume 12413, Free-Space Laser Communications XXXV; 1241313 (2023) https://doi.org/10.1117/12.2646044
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
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.
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Ollie J. D. Farley, James Osborn, and Matthew J. Townson "FAST simulation of bidirectional ground-space optical links with adaptive optics", Proc. SPIE 12413, Free-Space Laser Communications XXXV, 1241313 (17 March 2023); https://doi.org/10.1117/12.2646044
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KEYWORDS
Adaptive optics
Monte Carlo methods
Optical simulations
Atmospheric optics
Free space optics
Atmospheric propagation
Atmospheric turbulence
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