[PDF][PDF] Optique adaptative: correction des effets de la turbulence atmosphérique sur les images astronomiques

G Rousset, T Fusco - Comptes …, 2022 - comptes-rendus.academie-sciences …
L'optique adaptative (OA), installée aujourd'hui sur tous les très grands télescopes
astronomiques, permet de s' affranchir de la limitation en résolution angulaire imposée aux …

Tbit/s single channel 53 km free-space optical transmission-assessing the feasibility of optical GEO-satellite feeder links

BI Bitachon, Y Horst, L Kulmer, T Blatter… - … and Exhibition on …, 2022 - opg.optica.org
A 1 Tbit/s 53km single channel free-space optical (FSO) link is demonstrated. High
bandwidth, high order modulation formats and advanced adaptive optics are utilized. We …

The H2020 VERTIGO project towards tbit/s optical feeder links

A Le Kernec, L Canuet, A Maho… - … on Space Optics …, 2021 - spiedigitallibrary.org
To concurrently cope with the scarcity of RF frequency bands, the growing capacity demand
and the required lower cost of the ground segment, Very High Throughput Satellites systems …

Performance analysis of an adaptive optics based optical feeder link ground station

N Vedrenne, C Petit… - … on Space Optics …, 2021 - spiedigitallibrary.org
Space data highway networks are currently being deployed to provide high data rate
connectivity to non-fibre-connected areas around the world and to prepare the incoming …

Availability, outage, and capacity of spatially correlated, Australasian free-space optical networks

M Birch, JR Beattie, F Bennet, N Rattenbury… - Journal of Optical …, 2023 - opg.optica.org
Network capacity and reliability for free space optical communication (FSOC) is strongly
driven by ground station availability, which is dominated by local cloud cover causing an …

Proof-of-concept real-time implementation of interleavers for optical satellite links

DR Arrieta, S Almonacil, JM Conan… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Ground-satellite optical links are a promising technology for increasing capacity and security
over radio frequency links, while reducing weight and power consumption. However …

Pre-distortion adaptive optics for optical feeder links: simulations and performance analyses

IR Hristovski, J Osborn, OJD Farley, MJ Townson… - Optics …, 2024 - opg.optica.org
Optical feeder links offer immense utility in meeting future communication demands—
however, atmospheric turbulence limits their performance. This work targets this challenge …

Phase estimation at the point-ahead angle for AO pre-compensated ground to GEO satellite telecoms

P Lognoné, JM Conan, G Rekaya, N Védrenne - Optics Express, 2023 - opg.optica.org
We present a new method to estimate the off-axis adaptive optics pre-compensation phase
of a ground to GEO satellite telecom link suffering from point-ahead anisoplanatism. The …

FEELINGS: the ONERA's optical ground station for Geo Feeder links demonstration

P Cyril, B Aurélie, C Jean-Marc, D Anne… - … on Space Optical …, 2022 - ieeexplore.ieee.org
ONERA is currently developing an experimental Optical Ground Station (OGS), FEELINGS,
dedicated firstly to GEO-feeder links to investigate GEO-feeder link optimization and related …

10 Gbauds digital optical link and analog link from/to geostationary satellite

S Poulenard, T Anfray, M Crosnier… - … on Space Optics …, 2023 - spiedigitallibrary.org
Architecture of a 10 Gbauds link between new high complexity optical ground station
suitable for feeder link and a geo-stationary satellite is described. Such link is tested in …