Low phonon energy glass and fiber doped with a rare earth

Details Low phonon energy glass and fiber doped with a rare earth Low phonon energy glass and fiber doped with a rare earth

C - Chemistry, Metallurgy

03

C

261/21, 88/97

C03C 3/32 (2006.01) C03C 3/04 (2006.01) C03C 13/04 (2006.01) G02B 6/02 (2006.01) H01S 3/067 (2006.01)

Patent

CA 2301013

Disclosed herein is a low phonon energy glass and a fiber (100) made therefrom. The glass includes the following components given in mole percent: X 0.1-30, arsenic 0-40, gallium 0.01-20, Y 40-80, wherein X is selected from the group consisting of germanium and mixtures of germanium and up to 50 % of sulfur; wherein Y is selected from the group consisting of selenium, indium and mixtures thereof; and the glass also contains 0.001-2 weight percent of a rare earth, based on the weight of said components. The fiber has a minimum loss of less than 5 dB/m.

La présente invention concerne un verre à faible énergie de phonons et une fibre (100) formée à partir de ce verre. Le verre comprend les composants suivants en pourcentage en moles: X 0,1 - 30 arsenic 0 - 40 gallium 0,01 - 20 Y 40 - 85 X étant sélectionné dans le groupe formé par le germanium et des mélanges de germanium et jusqu'à 50 % de soufre; Y étant sélectionné dans le groupe formé par le sélénium, l'indium et leurs mélanges; et le verre contenant 0,001 à 2 % en poids d'une terre rare, sur la base du poids de ces composants. La fibre possède une perte minimale inférieure à 5 dB/m.

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