Probability density functions of power-in-bucket and power-in-fiber for an infrared laser beam propagating in the maritime environment

Charles Nelson, Svetlana Avramov-Zamurovic, Olga Korotkova, Reza Malek-Madani, Raymond Sova, Frederic Davidson

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Irradiance fluctuations of an infrared laser beam from a shore-to-ship data link ranging from 5.1 to 17.8 km are compared to lognormal (LN), gamma-gamma (GG) with aperture averaging, and gamma-Laguerre (GL) distributions. From our data analysis, the LN and GG probability density function (PDF) models were generally in good agreement in near-weak to moderate fluctuations. This was also true in moderate to strong fluctuations when the spatial coherence radius was smaller than the detector aperture size, with the exception of the 2.54 cm power-in-bucket (PIB) where the LN PDF model fit best. For moderate to strong fluctuations, the GG PDF model tended to outperform the LN PDF model when the spatial coherence radius was greater than the detector aperture size. Additionally, the GL PDF model had the best or next to best overall fit in all cases with the exception of the 2.54 cm PIB where the scintillation index was highest. The GL PDF model also appears to be robust for off-of-beam center laser beam applications.

Original languageEnglish (US)
Pages (from-to)7449-7461
Number of pages13
JournalApplied Optics
Volume52
Issue number31
DOIs
StatePublished - Nov 1 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Probability density functions of power-in-bucket and power-in-fiber for an infrared laser beam propagating in the maritime environment'. Together they form a unique fingerprint.

  • Cite this