Influence of O2 loading pre-treatment on the radiation response of pure and fluorine doped silica-based optical fibers

Diego Di Francesca (1) , S. Agnello (2) , Sylvain Girard (1) , Claude Marcandella (3) , Philippe Paillet (3) , Aziz Boukenter (1) , Youcef Ouerdane (1) , F. Gelardi (2)

1 LHC - Laboratoire Hubert Curien
2 Università degli studi di Palermo - University of Palermo
3 DAM/DIF - DAM Île-de-France

We investigated the impact of an oxygen pre-loading on pure-silica-core or fluorine-doped-core fiber responses to high irradiation doses (up to 1 MGy(SiO2)). Oxygen enrichment was achieved through a diffusion-based technique and the long term presence of O2 molecules was confirmed by micro-Raman experiments. Online Radiation Induced Attenuation (RIA) experiments were carried out in both the pristine and the O2-loaded optical fibers to investigate the differences induced by this pre-treatment in the UV and visible ranges. Contrary to results recently published on the positive impact of O2 on infrared RIA, our results reveal a RIA increased with O2 presence. Data are analyzed in order to better understand the microscopic processes involved during the irradiation and to evaluate possible hardening developments.

Domaines: Sciences de l'ingénieur [physics]

Diego Di Francesca, S. Agnello, Sylvain Girard, Claude Marcandella, Philippe Paillet, et al.. Influence of O2 loading pre-treatment on the radiation response of pure and fluorine doped silica-based optical fibers. 2014 IEEE Nuclear and Space Radiation Effects Conference, Jul 2014, Paris, France. pp.PG2. ⟨ujm-01027678⟩