Title :
Influence of the atmospheric turbulence on the laser beam
Author :
Barcik, Peter ; Hudcova, Lucie ; Wilfert, Otakar
Author_Institution :
Dept. of Radio Electron., Brno Univ. of Technol., Brno, Czech Republic
Abstract :
Free space optical (FSO) communication links offer a number of advantages over radio frequency links. Main advantages of FSO communication links are electromagnetic compatibility, license-free band and high data rate. However, reliability of these links is highly dependent on atmospheric and weather conditions. An optical wave propagating through the atmospheric transmission media is very sensitive on variety of atmospheric effects, e.g. beam wander, fluctuation of optical intensity and loss of spatial coherence. The purpose of this paper is to present the measurement of the distribution of the relative optical intensity variance in the Gaussian beam. The measurement of the spatial coherence is also presented.
Keywords :
atmospheric turbulence; electromagnetic compatibility; light propagation; optical links; FSO communication link; Gaussian beam; atmospheric effects; atmospheric transmission media; atmospheric turbulence; beam wander; electromagnetic compatibility; free space optical communication link; high data rate; laser beam; license-free band; optical intensity fluctuation; optical wave propagation; radio frequency links; relative optical intensity variance; reliability; spatial coherence loss; weather conditions; Atmospheric measurements; Laser beams; Measurement by laser beam; Optical beams; Optical receivers; Optical refraction; Optical sensors;
Conference_Titel :
Network and Optical Communications (NOC), 2013 18th European Conference on and Optical Cabling and Infrastructure (OC&i), 2013 8th Conference on
Conference_Location :
Graz
Print_ISBN :
978-1-4673-5821-7
DOI :
10.1109/NOC-OCI.2013.6582872
