Effect of rare earth doping on thermal and optical properties of low silica aluminosilicate glasses
Aluminosilicate glasses with low silica (25 mol%) content possess very good optical, thermal and mechanical properties. In addition they have high solubilities for rare earth elements. The aim of the study is to present the influence of rare earth doping on thermal and, consequentially, optical properties of low silica aluminosilicate glasses. In this paper the thermochemistry of low silica aluminosilicate glasses is investigated. The amorphous state of the glass structure and the course of the phase transformation during heating were investigated by DTA/DSC and XRD. Correlations between glass composition and the influence of RE on thermal properties were found. Luminescence spectra from RE ions embedded in a low silica aluminosilicate glass host were measured at room temperature. The substantial influence of the concentration of RE ions on luminescence and lifetime of excited states are discussed. Double clad and multicore optical fibres doped with Nd2O3 (1 mol%) were manufactured using the crucible and rod in tube methods.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: August 1, 2009