Demonstration of 24-hour continuous optical turbulence monitoring in a city

L. F. Beesley; R. Griffiths; K. Hartley; O. J. D. Farley; F. Quatresooz; A. Rodríguez-Gómez; A. Comerón; M. Townson; D. Alaluf; J. Osborn

doi:10.1364/oe.543144

Demonstration of 24-hour continuous optical turbulence monitoring in a city

L. F. Beesley, R. Griffiths, K. Hartley^*, O. J. D. Farley, F. Quatresooz, A. Rodríguez-Gómez, A. Comerón, M. Townson, D. Alaluf, J. Osborn

^*Corresponding author for this work

Mathematics, Physics and Electrical Engineering

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Abstract

Atmospheric optical turbulence limits the performance of free-space optical communication links between the ground and space. The bandwidth provided by optical links enables the realization of ubiquitous, high-bandwidth and secure communications anywhere on Earth. However, currently very little is known about the nature and dynamics of vertical optical turbulence in critical urban environments, close to data centers and users that require high-bandwidth connections. TURBO is a turbulence monitoring facility, based on the 24-hour Shack-Hartmann Image Motion Monitor (24hSHIMM) instrument, capable of measuring optical atmospheric turbulence 24-hours a day in stronger turbulence conditions. Here we show a demonstration of continuous turbulence monitoring in an urban environment for the first time in Barcelona, Spain. TURBO will be an autonomous monitor generating valuable data for the community.

Original language	English
Article number	10140
Pages (from-to)	10140-10149
Number of pages	10
Journal	Optics Express
Volume	33
Issue number	5
Early online date	27 Feb 2025
DOIs	https://doi.org/10.1364/oe.543144
Publication status	Published - 10 Mar 2025

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AU - Beesley, L. F.

AU - Griffiths, R.

AU - Hartley, K.

AU - Farley, O. J. D.

AU - Quatresooz, F.

AU - Rodríguez-Gómez, A.

AU - Comerón, A.

AU - Townson, M.

AU - Alaluf, D.

AU - Osborn, J.

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AB - Atmospheric optical turbulence limits the performance of free-space optical communication links between the ground and space. The bandwidth provided by optical links enables the realization of ubiquitous, high-bandwidth and secure communications anywhere on Earth. However, currently very little is known about the nature and dynamics of vertical optical turbulence in critical urban environments, close to data centers and users that require high-bandwidth connections. TURBO is a turbulence monitoring facility, based on the 24-hour Shack-Hartmann Image Motion Monitor (24hSHIMM) instrument, capable of measuring optical atmospheric turbulence 24-hours a day in stronger turbulence conditions. Here we show a demonstration of continuous turbulence monitoring in an urban environment for the first time in Barcelona, Spain. TURBO will be an autonomous monitor generating valuable data for the community.

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Demonstration of 24-hour continuous optical turbulence monitoring in a city

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