Influence of O2 Loading Pre-Treatment on the Radiation Responses of Pure and Fluorine Doped Silica-Based Optical Fibers
- Autori: Di Francesca, D; Agnello, S; Girard, S; Marcandella, C; Paillet, P; Boukenter, A; Ouerdane, Y; Gelardi, FM
- Anno di pubblicazione: 2014
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: irradiation effects
- OA Link: http://hdl.handle.net/10447/98112
Abstract
We investigated the impact of an oxygen preloading on pure-silica-core or fluorine-doped-core fiber responses to high irradiation doses (up to 1 MGy SiO ). Oxygen enrichment was achieved through a diffusion-based technique, and the long-term presence of O molecules was confirmed by micro-Raman experiments. Online radiation induced attenuation (RIA) experiments were carried out in both the pristine and the O -loaded optical fibers to investigate the differences induced by this pretreatment in the UV and visible ranges. Contrary to results recently published on the positive impact of O on infrared RIA, our results reveal a RIA increase with O presence. Data are analyzed in order to better understand the microscopic processes involved during the irradiation and to evaluate possible hardening developments.