Rare-earth doped optical fibers with nano-phase glass-ceramic structures

摘要

In this article we present possibility of obtaining nano-phase structures in glasses and optical fibers doped with RE ions. Effect of phosphate on structural and optical properties of antimony-germanate glasses doped with Eu3+ ions have been investigated. Modification of Sb2O3 - GeO2 - SiO2 - Al2O3 - Na2O glass system by P2O5 (up to 10 mol.%) shows possibility of creation of the EuPO4 phosphate nanophase. Controlled heat-treatment process selected glasses are used as a core of optical fiber. The luminescence spectra of glass, glass-ceramics and optical fibers were compared and discussed in terms of embedding nano-crystalline phase structures in RE - doped optical fiber.