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Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light

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Optical propagation in laboratory-generated turbulence.

R A Elliott, J R Kerr, P A Pincus

|March 11, 2010

Summary

This summary is machine-generated.

Researchers developed a novel facility using turbulent liquid ethanol to simulate atmospheric turbulence effects on optical propagation. This system allows detailed study of laser beam scattering and irradiance fluctuations.

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Area of Science:

Optical physics
Fluid dynamics
Laser propagation

Background:

Atmospheric turbulence significantly impacts optical wave propagation, posing challenges for various applications.
Simulating atmospheric turbulence in controlled laboratory settings is crucial for fundamental research and system development.

Purpose of the Study:

To describe and characterize a novel facility for simulating atmospheric turbulence effects on optical propagation.
To investigate the statistical properties of refractive index fluctuations within the turbulent medium.
To analyze the impact of simulated turbulence on laser beam propagation and irradiance.

Main Methods:

Utilized a turbulent liquid (ethanol) with controlled thermal gradients to generate unstable convection.
Measured refractive index structure function and spatial spectrum to characterize turbulence.
Propagated laser beams through the turbulent medium and analyzed irradiance statistics.

Main Results:

Presented measurements of turbulence parameters consistent with theoretical predictions.
Quantified the effects of the turbulent liquid on laser beam propagation.
Provided probability density functions, moments, and covariance functions of irradiance.

Conclusions:

The developed facility provides a versatile and useful platform for studying optical turbulence effects.
Experimental results align with theoretical models, validating the simulation approach.
The study offers valuable data for understanding and mitigating turbulence-induced optical distortions.