Possibilities of Using the Modified Equivalent Temperature Gradient for a Turbulent Atmosphere

This work is focused on the modified method of Equivalent Temperature Gradient which can determine instantaneous strength of the atmospheric turbulence. Origin of the method is presented and modified Equivalent Temperature Gradient for real situation is calculated. Received optical power of circular Gaussian beam for particular aperture radius to optical beam half widths ratios is calculated and relative variation of the received optical power of the beam passing through the turbulent atmosphere is determined. The dependence of the received optical power on the modified Equivalent Temperature Gradient is also presented in the paper. The work is closed by the definition of the next tasks which should be solved before the method of modified Equivalent Temperature Gradient will be applied for estimation of the turbulence strength in optical wireless communication with terabit transmission rates.