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Wave structure function, spatial coherence radius, and Fried parameter of optical wave propagating through ocean
Applied Optics
|December 1, 2023
Summary
Researchers derived an analytical formula for optical wave parameters in ocean turbulence. The wave structure function follows the Kolmogorov spectrum
Area of Science:
- Optical physics
- Ocean optics
- Atmospheric optics
Background:
- Ocean turbulence significantly impacts optical wave propagation.
- Understanding these effects is crucial for optical communication and remote sensing.
Purpose of the Study:
- Derive and analyze analytical formulas for optical wave characteristic parameters in ocean turbulence.
- Investigate the behavior of the wave structure function and spatial coherence radius.
Main Methods:
- Utilized the Rytov approximation for analysis.
- Employed the oceanic power spectrum of refractive index fluctuations.
- Derived analytical formulas for key optical wave parameters.
Main Results:
- The wave structure function adheres to the five-thirds power law in the inertial subregion.
- Established a relationship where spatial coherence radius is approximately 2.1 times the Fried parameter.
- Validated the analytical formulation against numerical results.
Conclusions:
- The derived analytical formulas accurately describe optical wave behavior in ocean turbulence.
- The findings support the applicability of Kolmogorov spectrum principles in oceanic conditions.
- Provides a theoretical basis for predicting optical wave distortions in marine environments.
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