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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry M. Van Driel
  • Vol. 25, Iss. 5 — May. 1, 2008
  • pp: 825–833

Superimposed partially coherent beams propagating through atmospheric turbulence

Xiaoling Ji, Entao Zhang, and Baida Lü  »View Author Affiliations


JOSA B, Vol. 25, Issue 5, pp. 825-833 (2008)
http://dx.doi.org/10.1364/JOSAB.25.000825


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Abstract

Two types of superposition, i.e., the superposition of the intensity and the superposition of the cross-spectral density function of off-axis partially coherent beams propagating through atmospheric turbulence, are analytically and numerically studied. The Gaussian–Schell model beam is taken as a typical example of the partially coherent beam, and analytical propagation equations for the resulting beam in turbulence are derived. The mean-squared beam width, the power in the bucket, and the β parameter are taken as the characteristic parameters of beam quality to compare the results of the two types of superimposed partially coherent beams in turbulence. It is shown that for the two types of superposition the smaller the coherence parameter α is, the less the resulting beam is sensitive to the effects of turbulence. The resulting beam of off-axis partially coherent beams for the superposition of the intensity is less affected by the turbulence than that for the superposition of the cross-spectral density function. The results are physically interpreted.

© 2008 Optical Society of America

OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(030.7060) Coherence and statistical optics : Turbulence

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: October 31, 2007
Revised Manuscript: February 18, 2008
Manuscript Accepted: March 5, 2008
Published: April 29, 2008

Citation
Xiaoling Ji, Entao Zhang, and Baida Lü, "Superimposed partially coherent beams propagating through atmospheric turbulence," J. Opt. Soc. Am. B 25, 825-833 (2008)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-25-5-825

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