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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 13 — Jul. 1, 2014
  • pp: 3950–3953

Single laser free-space duplex communication system with adaptive threshold technique and BER analysis in weak turbulent atmosphere

Dongxian Geng, Pengfei Du, Wei Wang, Gan Gao, Tao Wang, and Mali Gong  »View Author Affiliations

Optics Letters, Vol. 39, Issue 13, pp. 3950-3953 (2014)

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A free space duplex communication system with a single laser and a modulated retro-reflector is presented. A method to minimize the echo wave bit error rate (BER) of this system is proposed by setting the optimum threshold automatically based on the measured mean power and irradiance variances with log-normal distribution and the Bayes minimum classification error criterion. Experiments were taken at a distance of 1.55 km in a weak turbulence and the measured BER was 0.0213. The BER performance of this system is studied and the result shows the experimental BER is in good accordance with the theoretical value.

© 2014 Optical Society of America

OCIS Codes
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(290.5930) Scattering : Scintillation
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: April 8, 2014
Revised Manuscript: May 21, 2014
Manuscript Accepted: May 25, 2014
Published: June 26, 2014

Dongxian Geng, Pengfei Du, Wei Wang, Gan Gao, Tao Wang, and Mali Gong, "Single laser free-space duplex communication system with adaptive threshold technique and BER analysis in weak turbulent atmosphere," Opt. Lett. 39, 3950-3953 (2014)

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