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DOE OSTI · 1909049

Generation of multiple obstruction-free channels for free space optical communication

Ali Reza, S. B. (ORCID:0000000227625989)·Burger, M.·Bassène, P.·Nutting, T.·Jovanovic, I. (ORCID:0000000305733150)·N’Gom, M. (ORCID:0000000209802574)
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Abstract

Multi-filament structures produced by vortical high-power femtosecond pulses propagating through clouds and fog can simultaneously clear two channels with cylindrical and annular profile. We present a method to achieve Free Space Optical (FSO) communications through such highly scattering media by propagating appropriately shaped laser modes through these channels. As a proof of concept, we implemented a Laguerre-Gaussian beam as information signal carrier to demonstrate transmission of 543-nm CW laser beam through a 1-m long cloud chamber using both channels. The low power of the information signal in this experiment allows considering applications in Earth–satellite FSO communication.

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Ali Reza, S. B. (ORCID:0000000227625989), Burger, M., Bassène, P., Nutting, T., Jovanovic, I. (ORCID:0000000305733150), N’Gom, M. (ORCID:0000000209802574). 2023-01-12. Generation of multiple obstruction-free channels for free space optical communication. https://doi.org/10.1364/oe.477204

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