The future of very high throughput optical links between the ground and GEO satellites depends on the ability to overcome turbulence channel disruptions caused by the optical propagation through the atmosphere. Pre-compensation by adaptive optics has been identified as a game changer, as it could theoretically provide for the uplink the additional margin necessary to secure the link budget. Several experimental activities have been reported to investigate the practical increase that can be expected from AO pre-compensation, demonstrating very promising results. Due to the proximity of the line of sight from ground and the strong variability of turbulence conditions these results would benefit from a confirmation on a more representative line of sight. The line of sight between ESA's Optical Ground Station and the top of Mount Teide provides an unprecedented opportunity to provide this confirmation in a relevant environment. We report here the results of the first experimental demonstration of uplink pre-compensation performed on this line of sight in April 2019. The increase of average optical power is demonstrated and compared to expected performance. The influence of anisoplanatism is demonstrated and quantified; consequences on the future of GEO feeder links are inferred.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    First Experimental Demonstration of Adaptive Optics Pre-Compensation for GEO Feeder Links in a Relevant Environment


    Contributors:
    Vedrenne, N. (author) / Montri, J. (author) / Conan, J. M. (author) / Michau, V. (author) / Sodnik, Z. (author) / Voland, C. (author) / Montmerle-Bonnefois, A. (author) / Lim, C. B. (author) / Petit, C. (author) / Sauvage, J. F. (author)


    Publication date :

    2019-10-01


    Size :

    386928 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Adaptive optics pre-compensation for GEO feeder links: Towards an experimental demonstration

    Vedrenne, Nicolas / Conan, Jean-Marc / Bonnefois, Aurelie et al. | IEEE | 2017


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

    Cyril, Petit / Aurelie, Bonnefois / Jean-Marc, Conan et al. | IEEE | 2022


    Taxi feeder demonstration project

    Asherson, P. / Van der Walt, F. / University of Pretoria | British Library Conference Proceedings | 1993


    Optical inter-satellite and feeder links

    Troendle, Daniel / Saucke, Karen / Pimentel, Patricia Martin et al. | IEEE | 2017