Mechanisms of light absorption in gamma-irradiated blanks for optical fibers based on high-purity quartz glass

摘要

The IR optical absorption spectra and the Raman spectra of rods made of high-purity quartz glass of the KU-1 and KS-4V grades have been studied in comparison to those measured for the blanks of optical fibers fabricated from this glass using the plasma outside deposition (POD) technology. Based on these data, a discussion is presented of the most probable mechanisms responsible for an increase in the gamma-radiation-induced absorption in high-purity quartz glasses as a result of their processing in the course of optical fiber fabrication using the POD technology. (C) 2005 Pleiades Publishing, Inc.