Comparison of laser properties of rare earths in oxide and fluoride glasses

R. Reisfeld*, M. Eyal, C. K. Jørgensen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

Laser properties of fluoride and oxide glasses containing neodymium (III), and holmium(III) depend on the pumping efficiency, lifetimes of the excited and terminal levels and stimulated peak cross-sections. We have determined these properties in oxide glass (tellurite) having a composition of 35ZnO:65TeO2 and fluoride glass (ZBLA) having composition 57ZrF4:34BaF2:5LaF3:4AlF3, or (PBLA) having a composition 36PbF2: 24ZnF2:35GaF3:3YF3:2AlF3 for neodymium(III) and holmium(III). It was shown that multiphonon relaxation (in the case of energy difference less than 3000 cm-1) is always orders of magnitude lower in the fluoride glass than in the tellurite glass, which was chosen as a model for oxide glass. No significant difference was found for concentration quenching between the two kinds of glasses.

Original languageEnglish
Pages (from-to)187-194
Number of pages8
JournalJournal of the Less-Common Metals
Volume126
Issue numberC
DOIs
StatePublished - Dec 1986

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