What is it about?
In this work, we present a simulation tool that allows evaluating the performance of atmospheric optical communications links affected by weak-to-strong turbulence in the time domain. To show that the results obtained by simulation are very similar to those obtained in the real world, we compare a signal simulated of data affected by turbulence and -noise against the signal delivered by a photo-detector in a long-distance atmospheric optical link.
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Why is it important?
The simulation tool that we developed allows using physical component parameters such as the amplitude noise of a photo-receiver so that the results obtained are closer to a real-world implementation. Additionally, a direct application of our tool is the generation of pseudo-random data sequences affected by software-controlled levels of optical turbulence. These data can modulate the intensity of light from an optical source. In this way, this application is an excellent alternative to the use of turbulence chambers since, through synthesis, it is possible to obtain practically larger optical turbulence intervals.
Perspectives
The realization of this article was delightful for me because it allowed us to combine the purely theoretical aspect with simulation tools and with the practical work that we carry out both in the laboratory and in the field. We implement and characterize optical links as part of our terrestrial and satellite optical communications activities. Combining these three aspects: theory, simulation, and experimentation, was a significant challenge, but we obtained good results.
Arturo Arvizu
Centro de Investigacion Cientifica y de Educacion Superior de Ensenada
Read the Original
This page is a summary of: Development and characterization of a simulation module in the temporal domain for experimental optical atmospheric links affected by optical turbulence with gamma‐gamma probability density function, Microwave and Optical Technology Letters, June 2020, Wiley,
DOI: 10.1002/mop.32468.
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