Atmospheric propagation of space-fractional Gaussian-beam waves in a FSO communication system

Abdullah Nafis Khan, Usman Younis, Muhammad Qasim Mehmood, Muhammad Zubair

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We present a novel, self-consistent analytical model of Gaussian-beam propagation through the atmospheric turbulence by solving the paraxial wave equation in a fractional-dimension space of dimension D, in the range 2 < D ≤ 3, corresponding to the effective spatial dimension experienced by the beam under given turbulent conditions in a free space optical (FSO) communication system. The well-known refractive index structure parameter (Cn2) has been mapped from D = 2.668 (Cn2 ≈ 10−13, strong fluctuations) to D = 2.999 (Cn2 ≈ 10−16, weak fluctuations) in our simple analytical model, whereas D = 3 corresponds to the ideal case of free-space propagation under zero turbulence. Finally, an optimization problem is developed to mitigate the effects of atmospheric turbulence, leading to efficient transceiver design for the FSO communication system to ensure the reliability of links under varying atmospheric turbulence.
Original languageEnglish (US)
Pages (from-to)1570-1583
Number of pages14
JournalOptics Express
Issue number2
StatePublished - Jan 17 2022
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-20

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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