Polarization Properties of Quasi-Homogeneous Beams Propagating in Oceanic Turbulence

Abstract

Based on the extended Huygens-Fresnel principle and generalized Stokes theory, the evolution of polarization properties of beams generated by quasi-homogenous (QH) sources propagating in clear oceanic water was studied by the use of the oceanic turbulence spatial spectrum function. The results show that the beams have similar polarization self-reconstructed behavior under different turbulence conditions in the far field, but if the propagation distance is not long enough, the degree of polarization (DOP) fluctuates with much more complexity than state of polarization (SOP) of QH beams. The self-reconstructed ability of DOP at the special distance in turbulence would get to the best value if the values of coherence of width were chosen suitably, but for SOP, it has no best value.

Analyzing the effect of oceanic turbulence on spreading properties of the Whittaker-Gaussian laser beam

“…For that, researchers have broadly established the impact of temperature and salinity changes on laser beam propagation, this comprises the degree of polarization and the scintillation index. Overall, several theoretical and practical investigations have attracted the great attention of many optical researchers to different laser beams passing through oceanic turbulence for a long time, as evidenced by numerous studies (Chen et al 2013;Fu and Zhang 2013;Huang et al 2014;Ding et al 2015;Li et al 2019;Liu et al 2019;Liu et al 2017;Lu et al 2015;Ye et al 2018;Bayraktar 2020;Ata and Baykal 2018). Our research group has conducted a comprehensive study in this domain and has also contributed to examining this medium Saad et al 2023;Benzehoua and Belafhal 2023a;Lazrak et al 2022;Benzehoua et al 2023).…”

Influence of oceanic turbulence on propagation characteristics of Gaussian array beams

“…Polarization properties of quasi-homogeneous beams and propagation properties of partially coherent radially polarized doughnut beams in turbulent ocean are examined in Refs. [16,17], respectively.…”

Comparative analysis of Bessel higher-order cosh- and sinh-Gaussian beams spreading through oceanic turbulence

“…It is commonly recognized that variations in salinity and temperature affect the refractive index of oceanic turbulence. Research on the effects of oceanic water temperature and salinity fluctuations, as well as the degree of polarization, mutual coherence function, spreading spherical waves, scintillation index, beam wander and average aperture on laser beam propagation have all been extensively studied (Chen et al, 2013;Lu et al, 2014;Baykal, 2016;Yang et al, 2017;Chib et al, 2023;Alharbi et al 2022).…”