Optimum Truncation of a Gaussian Beam in the Presence of Random Jitter

Abstract

We consider the far-field (or focal-plane) irradiance distribution of a Gaussian beam truncated by a circular aperture in the presence of random angular jitter. First, in the absence of jitter, we derive an accurate analytical approximation for the irradiance distribution within the main lobe of the beam for the case where the beam diameter is less than the aperture diameter. We then obtain the corresponding mean irradiance distribution in the presence of circularly symmetric, normally distributed jitter. By maximizing the on-axis intensity, we obtain the optimum ratio of the beam diameter to the aperture diameter in the presence of jitter and present results for the corresponding maximum on-axis intensity and encircled power as a function of the jitter statistics. Gaussian beams, Jitter.

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Document Details

Document Type
Technical Report
Publication Date
Sep 15, 1994
Accession Number
ADA284951

Entities

People

  • H. T. Yura

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Facilities
  • Clear Air Turbulence
  • Corporations
  • Data Science
  • Diameters
  • Far Field
  • Focal Planes
  • Information Science
  • Intensity
  • Lasers
  • Optical Lattices
  • Power Distribution
  • Radiation
  • Standards
  • Statistics

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.
  • Spectroscopy.
  • Statistical inference.