Affiliation:
1. Cihan University- Erbil
2. Chouaïb Doukkali University
Abstract
Abstract
This paper aims to study the evolution behavior of Generalized Hermite cosh-Gaussian beam (GHCGB), when it propagates through a turbulent oceanic medium. Extended Huygens-Fresnel principal is used to evaluate the received intensity expression for the considered beam propagating in oceanic turbulence. Numerical examples are analyzed to illustrate the variations of average intensity under the influences of the oceanic turbulence parameters and the source beam parameters. Results show that the GHCGB propagating in stronger oceanic turbulence will lose its first profile and evolve into a Gaussian distribution rapidly with the larger dissipation rate of mean squared temperature and relative strength of temperature and salinity fluctuations or the smaller rate of dissipation of turbulent kinetic energy per unit mass of fluid, in the far field. According to the provided study, the results obtained are useful to the practical application of the GHCGB in oceanic turbulence for both imaging systems and underwater optical communication.
Publisher
Research Square Platform LLC
Reference47 articles.
1. Abramowitz, M., Stegun, I.: Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, U. S., Department of Commerce (1970)
2. Andrews, L.C., Phillips, R.L.: Laser Beam Propagation through Random Media. SPIE Press, Bellingham, Washington, DC, USA (2005)
3. Effect of anisotropy on bit error rate for an asymmetrical Gaussian beam in a turbulent ocean;Ata Y;Appl. Opt.,2018
4. Scintillation index in strong oceanic turbulence;Baykal Y;Opt. Commun.,2016
5. A note on some integrals involving Hermite polynomials encountered in caustic optics;Belafhal A;Adv. Math. Models App,2020