Polarimetric optical fibre sensing for plasma current measurement in thermonuclear fusion reactors

Marc Wuilpart, Andrei Goussarov, Willem Leysen, Paola Batistoni, Philippe Moreau, Prasadaraju Dandu, Patrice Mégret

    Research outputpeer-review


    For plasma current sensing in next-generation Tokamak thermonuclear fusion reactors like ITER and DEMO, optical fibre-based polarimetric sensors appear to be an alternative to conventional technologies (Rogowski coils, pick-up coils) thanks to a direct measurement of the plasma current (the polarization rotation is proportional to the current) and to an expected robustness against radiations. Optical fibre sensors also offer the possibility to avoid the use of a large number of electrical cables required in conventional technologies. In this paper, we propose to summarize our last results in FOCS (Fibre-Optics Current Sensor) and POTDR (Polarization Optical Time-Domain Reflectometer) sensors based on spun and low birefringence fibres, respectively. This study will be contextualized in the frame of the future ITER fusion reactor. Experimental results obtained on the JET tokamak for the FOCS approach and the TORE SUPRA tokamak for the POTDR approach will also be presented.
    Original languageEnglish
    Title of host publication22nd International Conference on Transparent Optical Networks (ICTON)
    PublisherIEEE - Institute of Electrical and Electronics Engineers
    Number of pages4
    StatePublished - 19 Jul 2020
    Event2020 - 22nd International Conference on Transparent Optical Networks - Online, Bari
    Duration: 19 Jul 202023 Jul 2020

    Publication series

    NameInternational Conference on Transparant Optical Networks


    Conference2020 - 22nd International Conference on Transparent Optical Networks
    Abbreviated titleICTON
    Internet address

    Cite this