PDF computations for power-in-the-bucket measurements of an IR laser beam propagating in the maritime environment

C. Nelson, S. Avramov-Zamurovic, R. Malek-Madani, O. Korotkova, R. Sova, F. Davidson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


During two separate field tests (July and September 2009) the performance of a free-space optical (FSO) communications link was evaluated in the maritime environment off of the mid-Atlantic coast near Wallops Island, VA. During these two field tests, a bi-directional shore-to-ship data link was established using commercially available adaptive optics terminals. The link, which ranged from 2 - 22 km (optical horizon), was established between a lookout tower located on Cedar Island, VA and a Johns Hopkins University Applied Physics Laboratory research vessel. This paper presents statistical analysis of the power-in-the-bucket captured from two detectors placed alongside the adaptive optics terminal during the September 2009 field trial. The detectors ranged in size from 0.25" to 1.0" in diameter. We will present the histogram reconstruction and compare the data for the 0.25" and 1.0" power-in-bucket (PIB), and 1.0" power-in-fiber (PIF) Adaptive Optics (AO) detectors with analytical probability density function (PDF) models based on the Lognormal, Gamma-Laguerre, and Gamma-Gamma distributions. Additionally, dependence of the results on propagation distance, detector aperture size, and varying levels of optical turbulence are investigated.

Original languageEnglish (US)
Title of host publicationAtmospheric Propagation VIII
StatePublished - 2011
EventAtmospheric Propagation VIII - Orlando, FL, United States
Duration: Apr 26 2011Apr 27 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherAtmospheric Propagation VIII
Country/TerritoryUnited States
CityOrlando, FL


  • Atmospheric turbulence
  • Free-space optical communications
  • Gamma-Gamma
  • Gamma-Laguerre
  • Maritime communications
  • Probability density function
  • Scintillation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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