Effects of excimer laser exposure on the degradation of silica glasses and fibers

摘要

Abstract: Ultraviolet laser radiation induces a myriad of effects in silica glasses and fibers. This study deals with the absorption and luminescence characteristics of silica manufactured by different methods, containing varying amounts of water - broadly grouped into the ultra dry, moderately wet, and very wet types. The effect of 248 nm (KrF) excimer laser radiation on these characteristics is examined. The effects seen in the bulk form are contrasted with those seen in drawn fibers, in particular, with regards to the luminescence behavior. !10