Study of the Temperature Turbulences Effect upon Optical Beam in Atmospheric Optical Communication

• Main Authors: F. Dvorak, J. Diblik
• Format: Article
• Language: English
• Published: Spolecnost pro radioelektronicke inzenyrstvi 2011-09-01
• Series: Radioengineering
• Subjects: Temperature turbulences; optical beam; state of polarization; Poincare sphere; variance; cross correlation function
• Online Access: http://www.radioeng.cz/fulltexts/2011/11_03_575_580.pdf

The paper deals with the study of the effect of temperature turbulences upon the optical beam. The polarization parameters of optical radiation sources and different optical beam states of polarization have been investigated. The obtained polarization parameters are projected on the Poincare sphere by means of Stokes vectors. The optical power distribution curves of optical beams are processed into diagrams. The horizontal and vertical components of linearly and circularly polarized optical beams have been studied. The turbulence flux has vertical direction and the optical beam is propagating through an atmosphere environment with three different states of turbulence. The evaluation of the obtained data was done by means of variance and correlation functions computing. Different rates of effect of temperature turbulences upon horizontal and vertical components were found. To reduce the rate of effect the advantage of an optical beam with circular polarization has been proposed.