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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 31, Iss. 9 — Sep. 1, 2014
  • pp: 1963–1968

Bit error rate of focused Gaussian beams in weak oceanic turbulence

Hamza Gerçekcioğlu  »View Author Affiliations

JOSA A, Vol. 31, Issue 9, pp. 1963-1968 (2014)

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Formulation of the on-axis scintillation index of a focused Gaussian beam in weak oceanic turbulence is derived by using the Rytov method, and using this formulation, the average bit error rate (BER) is evaluated. The scintillation indices of collimated, focused Gaussian, plane, and spherical beams are compared. The scintillation index and BER versus the average signal-to-noise ratio is found by using the log-normal distributed intensity for the collimated and focused Gaussian beams, which are exhibited for various source sizes αs, focal lengths Fs, rates of dissipation of the mean squared temperature χT, and rates of dissipation of the turbulent kinetic energy per unit mass of fluid ε. Focused beams are found to have important advantages over collimated beams. For the focused beam, as the source size increases, the scintillation index and BER decrease. When the focal length is equal to the propagation length, the BER is found to possess the smallest value. The BER is proportional to χT, but inversely proportional to ε.

© 2014 Optical Society of America

OCIS Codes
(010.3310) Atmospheric and oceanic optics : Laser beam transmission
(010.7060) Atmospheric and oceanic optics : Turbulence
(290.5930) Scattering : Scintillation
(010.4455) Atmospheric and oceanic optics : Oceanic propagation

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: April 3, 2014
Revised Manuscript: July 1, 2014
Manuscript Accepted: July 5, 2014
Published: August 11, 2014

Hamza Gerçekcioğlu, "Bit error rate of focused Gaussian beams in weak oceanic turbulence," J. Opt. Soc. Am. A 31, 1963-1968 (2014)

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