The Effect of Turbulence on Laser Beam Quality.

Abstract

Helium Neon and Helium Cadmium Laser Beams were propagated through a turbulent medium and the Mean Laser Beam Intensity and Power Profiles were measured in the Focal Plane. The parameter's effect of ranges of the ratios of integral and micro scales of turbulence to laser beam diameter and ranges of turbulence intensities which are typical of laser cavities are reported. The experimental measurements are compared with analytical predictions of Chernov and Sutton showing that the uncertainty in predicting laser beam spread in the presence of random fluctuations has been reduced by a factor of at least 2. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1976
Accession Number
ADA038667

Entities

People

  • Richard B. Rivir

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Convection
  • Detectors
  • Differential Equations
  • Fluid Dynamics
  • Fluid Flow
  • Heat Transfer
  • Laser Applications
  • Laser Beams
  • Lasers
  • Measurement
  • Mechanical Properties
  • Physics Laboratories
  • Refractive Index
  • Scattering
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers