Open AccessNew model of the fiber coupling efficiency of a partially coherent Gaussian beam in an ocean to fiber link
Author(s) -
Beibei Hu,
Yixin Zhang,
Yun Zhu
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.025111
Subject(s) - optics , coupling (piping) , fiber , gaussian beam , physics , graded index fiber , dispersion shifted fiber , beam (structure) , numerical aperture , polarization maintaining optical fiber , turbulence , optical fiber , materials science , wavelength , fiber optic sensor , mechanics , metallurgy , composite material
The fiber coupling efficiency between the turbulent ocean to fiber of a partially coherent Gaussian beam propagating through the weak to strong anisotropic oceanic turbulence is studied. We derive the expression of new model of the fiber coupling efficiency for the partially coherent Gaussian beam. The numerical analyses reveal that larger inner scale and anisotropic factor, weaker oceanic turbulence strength, and smaller temperature-salinity contribution ratio will lead to a higher coupling efficiency; a longer wavelength, an suitable aperture diameter of the coupling lens, an optimum focal length and beam size, and a higher coherent degree will improve the fiber coupling efficiency. Our fiber coupling efficiency is higher than the previous fiber coupling efficiency.