Tellurite glasses and optical components

Details Tellurite glasses and optical components Tellurite glasses and optical components

C - Chemistry, Metallurgy

03

C

C03C 3/12 (2006.01) C03C 3/14 (2006.01) C03C 3/15 (2006.01) C03C 3/155 (2006.01) C03C 3/16 (2006.01) C03C 3/19 (2006.01) C03C 3/21 (2006.01) C03C 13/04 (2006.01) H01S 3/17 (2006.01)

Patent

CA 2375323

A family of alkali-tungsten-tellurite glasses that consist essentially of, as calculated in mole percent, 10-90 % TeO2, at least 5 % WO3 and at least 0.5 % R2O where R is Li, Na, K, Cs, Tl and mixtures, that may contain a lanthanide oxide as a dopant, in particular erbium oxide, and that, when so doped, is characterized by a fluorescent emission spectrum having a relatively broad FWHM value.

Cette invention se rapporte à une famille de verres alcali-tungstène-tellurite, qui contiennent essentiellement, selon une proportion calculée en pourcentage molaire, 10 à 90 % de TeO¿2?, au moins 5 % de WO¿3? et au moins 0,5 % de R¿2?O, où R représente Li, Na, K, Cs, Tl et des mélanges. Cette famille de verres peut contenir un oxyde de lanthanide comme dopant, notamment de l'oxyde d'erbium et, lorsqu'elle est ainsi dopée, cette famille de verres se caractérise par un spectre d'émission fluorescent ayant une valeur FWHM relativement large.

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