6-MeV Electron Exposure Effects on OFDR-Based Distributed Fiber-Based Sensors

Camille Sabatier (1) , Serena Rizzolo (2) , Adriana Morana (1) , Timothé Allanche (1) , Thierry Robin (3) , Benoit Cadier (3) , Philippe Paillet (4) , Marc Gaillardin (4) , Olivier Duhamel (4) , Claude Marcandella (4) , Damien Aubert (5) , Gilles Assaillit (5) , Gérard Auriel (5) , Aziz Boukenter (1) , Youcef Ouerdane (1) , Luciano Mescia (6) , Emmanuel Marin (1) , Sylvain Girard (1)

1 LHC - Laboratoire Hubert Curien
2 DEOS - Département Electronique, Optronique et Signal
3 iXBlue Photonics
4 DAM/DIF - DAM Île-de-France
5 DAM/GRAMAT - GRAMAT
6 Politecnico di Bari

The impact of exposing an optical fiber to 6-MeV electrons on the performances of optical frequency domain reflectometry (OFDR) distributed sensors is investigated. Six different types of optical fibers with different core compositions and coatings have been tested: four fibers are metal coated (copper, gold, or aluminum) for high-temperature >300 °C) operations while the two others have telecom-grade acrylate coatings for operation below 80 °C. The fiber Rayleigh signature used to perform the OFDR sensing remains almost unaffected after an electron exposure. Indeed, the measured radiation-induced temperature errors are lower than about 3 °C, close to the setup uncertainties, when the OFDR operates as a temperature sensor.

Keywords: Optical fibers; Optical fiber sensors; Radiation effects; Electrons; Reflectometry

Domains: Optics / Photonic

Camille Sabatier, Serena Rizzolo, Adriana Morana, Timothé Allanche, Thierry Robin, et al.. 6-MeV Electron Exposure Effects on OFDR-Based Distributed Fiber-Based Sensors. IEEE Transactions on Nuclear Science, 2018, 65 (8), pp.1598-1603. ⟨10.1109/TNS.2018.2804663⟩. ⟨ujm-01926003⟩