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Updated: Jul 2, 2026

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Performance of synchronous optical receivers using atmospheric compensation techniques
Aniceto Belmonte1, Joseph Khan
1Department of Signal Theory and Communications, Technical University of Catalonia, 08034 Barcelona, Spain.
Abstract:
We model the impact of atmospheric turbulence-induced phase and amplitude fluctuations on free-space optical links using synchronous detection. We derive exact expressions for the probability density function of the signal-to-noise ratio in the presence of turbulence. We consider the effects of log-normal amplitude fluctuations and Gaussian phase fluctuations, in addition to local oscillator shot noise, for both passive receivers and those employing active modal compensation of wave-front phase distortion. We compute error probabilities for M-ary phase-shift keying, and evaluate the impact of various parameters, including the ratio of receiver aperture diameter to the wave-front coherence diameter, and the number of modes compensated.
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