TITLE:
Study on Turbulence Effects for Beam Propagation in Turbulent Atmosphere
AUTHORS:
Pingping Pan
KEYWORDS:
Atmospheric Turbulence; Rytov Method; Scintillation Index, Mean Square Angle-of-Arrival Fluctuations; Constant of the Refractive Index Fluctuations
JOURNAL NAME:
Optics and Photonics Journal,
Vol.3 No.2B,
July
19,
2013
ABSTRACT: Based on the theory for the turbulence and the Rytov method,
the propagation formulas of the scintillation index and the mean square
angle-of-arrival fluctuation for the beam propagation in atmospheric turbulence
have been derived respectively. The propagation properties of the two turbulence
effects have been investigated, and the effects of the characteristic
parameters of turbulence and the beam parameters have been discussed. The
results show that the variation of the two turbulence effects depends on the
structure constant of the refractive index fluctuations Cn2, the inner scale of
the turbulence l0, the waist width of source beam w0 and the wave length λ.
Moreover, there are two parameters including Cn2 and l0 which show more
significant effects in atmosphere. Consequently, a new method for determining
the characteristics parameters of the turbulence by using the measurement of
the scintillation index and the angle-of-arrival fluctuation has been proposed.