Accession Number:

ADA171257

Title:

Laser Beam Degradation by an Inhomogeneous Free Jet Mixing Layer.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s):

Report Date:

1986-01-01

Pagination or Media Count:

188.0

Abstract:

A method for directly sampling and numerically processing the far field diffraction pattern of laser beams was developed. This method was used to examine the distortion effects of subsonic mixing layers with zero velocity ratio and various density ratios on beams passing through them. Details of the method are presented. Strehl ratios, indicating the amount of beam degradation, are derived from the data obtained from beams having passed through the mixing layers. The Strehl ratios derived from the data were found to match reasonably well with theoretical predictions.

Subject Categories:

  • Lasers and Masers
  • Fluid Mechanics
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE