Influence of the Manufacturing Process on the Radiation Sensitivity of Fluorine-Doped Silica-Based Optical Fibers

Abstract : In this work, we analyze the origins of the different radiation sensitivities observed in fluorine-doped optical fibers made with different fabrication processes. Several experimental techniques have been used, coupling in situ radiation-induced absorption measurements with post mortem confocal microscopy luminescence measurements. The results showed that the manufacturing process of these fibers, considered as radiation-tolerant, can strongly affect the fiber response. More detailed analysis of the radiation-induced mechanisms responsible for these changes will be presented in the final paper.