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

Identifieur interne : 004123 ( Main/Exploration ); précédent : 004122; suivant : 004124

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

Auteurs : R. Reisfeld [Israël] ; M. Eyal [Israël] ; C. K J Rgensen [Suisse]

Source :

RBID : ISTEX:880C2DE1CACCA60A29E59CA121B1E16C55AB7ECE

English descriptors

Abstract

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.

Url:
DOI: 10.1016/0022-5088(86)90279-1


Affiliations:


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Le document en format XML

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<term>Absorption coefficient</term>
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<div type="abstract" xml:lang="en">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.</div>
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