Scintillation index for the optical wave in the vertical oceanic link with anisotropic tilt angle

Author:

Lin Zhiru,Xu Guanjun123ORCID,Wang Weizhi3,Zhang Qinyu34,Song Zhaohui2

Affiliation:

1. Xidian University

2. Hangzhou Dianzi University

3. Peng Cheng Laboratory

4. Harbin Institute of Technology (Shenzhen)

Abstract

The influence of the ocean depth and anisotropic tilt angle on vertical underwater wireless optical communication (UWOC) systems is considered in this study. We propose a power spectrum model of oceanic turbulence with an anisotropic tilt angle for the first time. Thereafter, the expression of the scintillation index is derived for a spherical wave propagating over anisotropic oceanic turbulence in the vertical link. In addition, considering the temperature and salinity, relevant data of the Atlantic and Pacific oceans at different depths are selected to study further the effect of ocean depth on the scintillation index. The results indicate that the scintillation index strongly depends on the ocean depth and anisotropic tilt angle. Moreover, the scintillation index is also related to other parameters, such as temperature and salinity, kinematic viscosity, the anisotropic factor, optical wavelength, and propagation distance. The presented results can be beneficial in designing optical wireless communication systems in the ocean environment.

Funder

National Natural Science Foundation of China

The Open Foundation of State Key Laboratory of Integrated Services Networks

The Major Key Project of PCL

Shanghai Space Innovation Fund

Young Elite Scientist Sponsorship Program by CAST

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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