Propagation Model of Adaptively Corrected Laser Beams in Turbulence (Modele de Propagation dans la Turbulence de Faisceaux Laser Corriges par une Optique Adaptable),

Abstract

This report describes a mathematical model for solving the propagation problem of laser beams traveling in atmospheric turbulence and corrected by adaptive optics. The modeling of the adaptive optics is mathematically simple but sufficiently general to encompass the majority of the existing systems. The model also includes the effects of beam jitter and partial coherence of the source. The method allows the prediction of the average irradiance and the irradiance variance beam profiles for arbitrary scintillation levels. Typical solutions are presented for 3.8- and 10.6 micron laser beams. These results illustrate the performance, after propagation in turbulence, of an adaptive system as a function of the wavelength, the number of active elements and the noise level. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1981
Accession Number
ADA110949

Entities

People

  • L. R. Bissonnette

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Adaptive Optics
  • Adaptive Systems
  • Amplitude Modulation
  • Atmospheric Motion
  • Computational Science
  • Differential Equations
  • Diffraction
  • Equations
  • Focal Planes
  • Laser Beams
  • Mathematical Models
  • Models
  • Optical Lattices
  • Optics
  • Partial Differential Equations
  • Refractive Index
  • Wave Mixing

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Image Processing and Computer Vision.
  • Small Business Innovation Research Program (SBIR) EDI Research and Innovation.

Technology Areas

  • Directed Energy