Modelling of laser beam propagation in atmospheric turbulence
Abstract
A semiempirical model of laser beam propagation in turbulence is developed. The model is in the form of a closed set of simultaneous secondorder partial differential equations for the first and secondorder statistical moments of the complex wave amplitude defined on the geometrical phase front. The equations, which are linear and contain only algebraic coefficients, are uniformly valid over the entire propagation range. The model gives the wellknown perturbation results in the limit of small propagation distance. Solutions for average irradiance and irradiance variance profiles of laser beams are easily and quickly calculated by a numerical finitedifference method. Theoretical predictions agree very well with experimental data over the entire propagation range.
 Publication:

GasFlow and Chemical Lasers
 Pub Date:
 1979
 Bibcode:
 1979gfcl.proc...73B
 Keywords:

 Atmospheric Optics;
 Atmospheric Turbulence;
 Laser Beams;
 Light Transmission;
 Turbulence Effects;
 Wave Equations;
 Closure Law;
 Constitutive Equations;
 Finite Difference Theory;
 Irradiance;
 Partial Differential Equations;
 Statistical Analysis;
 Variance (Statistics);
 Lasers and Masers