Study of strong turbulence effects for optical wireless links

Heba Yuksel; Hasim Meric; Fulya Kunter

doi:10.1117/12.929604

24 October 2012 Study of strong turbulence effects for optical wireless links

Heba Yuksel, Hasim Meric, Fulya Kunter

Proceedings Volume 8517, Laser Communication and Propagation through the Atmosphere and Oceans; 85170I (2012) https://doi.org/10.1117/12.929604
Event: SPIE Optical Engineering + Applications, 2012, San Diego, California, United States

Abstract

Strong turbulence measurements that are taken using real time optical wireless experimental setups are valuable when studying the effects of turbulence regimes on a propagating optical beam. In any kind of FSO system, for us to know the strength of the turbulence thus the refractive index structure constant, is beneficial for having an optimum bandwidth of communication. Even if the FSO Link is placed very well-high-above the ground just to have weak enough turbulence effects, there can be severe atmospheric conditions that can change the turbulence regime. Having a successful theory that will cover all regimes will give us the chance of directly processing the image in existing or using an additional hardware thus deciding on the optimum bandwidth of the communication line at firsthand. For this purpose, Strong Turbulence data has been collected using an outdoor optical wireless setup placed about 85 centimeters above the ground with an acceptable declination and a path length of about 250 meters inducing strong turbulence to the propagating beam. Variations of turbulence strength estimation methods as well as frame image analysis techniques are then been applied to the experimental data in order to study the effects of different parameters on the result. Such strong turbulence data is compared with existing weak and intermediate turbulence data. Aperture Averaging Factor for different turbulence regimes is also investigated.

Citation Download Citation

Heba Yuksel, Hasim Meric, and Fulya Kunter "Study of strong turbulence effects for optical wireless links", Proc. SPIE 8517, Laser Communication and Propagation through the Atmosphere and Oceans, 85170I (24 October 2012); https://doi.org/10.1117/12.929604

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