Experimental measurements of atmospheric turbulence strength through scintillation and beam-wander analysis
conference paper
In order to improve laser communication link performance, turbulence strength is an important parameter to characterize the system’s correcting limits and detection availability. By setting an experimental optical link through free space horizontal propagation in a 1-km path, we study the strength of different turbulence scenarios through the Rytov approximation and scintillation of the beam, and compare methods of experimental detection of the refractive-index structure constant of the turbulence, C 2 n . Results show that, under low and medium turbulence regimes, both methods behave similiarly as a way to predict C 2 n ; however, with larger turbulence strength, the beam’s displacements in the focal plane are more sensitive than the intensity fluctuactions
TNO Identifier
990308
Publisher
SPIE
Source title
SPIE Optical Engineering + Applications, 2023, San Diego, California USA
Files
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