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Applied Optics

Applied Optics


  • Vol. 41, Iss. 3 — Jan. 20, 2002
  • pp: 532–542

Heterodyne measurements of laser light scattering by a turbulent phase screen

Kevin D. Ridley, Stephen M. Watson, Eric Jakeman, and Michael Harris  »View Author Affiliations

Applied Optics, Vol. 41, Issue 3, pp. 532-542 (2002)

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We report experiments in which a fiber-coupled heterodyne laser system operating at a wavelength of 1.5 µm is used to measure the phase fluctuations induced on a laser beam by passage through a thin layer of turbulent air and subsequent propagation through free space. We investigate the statistical properties and power spectra of the phase and its rate of change, in addition to the intensity statistics. We find that the power spectrum of the rate of change of phase has a simple negative exponential form. We discuss our results in the context of the problem of detection of phase variations over an extended turbulent atmospheric path.

© 2002 Optical Society of America

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(030.6600) Coherence and statistical optics : Statistical optics
(030.7060) Coherence and statistical optics : Turbulence
(040.2840) Detectors : Heterodyne
(120.5050) Instrumentation, measurement, and metrology : Phase measurement

Original Manuscript: March 30, 2001
Revised Manuscript: July 30, 2001
Published: January 20, 2002

Kevin D. Ridley, Stephen M. Watson, Eric Jakeman, and Michael Harris, "Heterodyne measurements of laser light scattering by a turbulent phase screen," Appl. Opt. 41, 532-542 (2002)

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