Silicate waveguide compositions for extended l-band and...

Details Silicate waveguide compositions for extended l-band and... Silicate waveguide compositions for extended l-band and...

C - Chemistry, Metallurgy

03

C

C03C 13/04 (2006.01) C03B 19/10 (2006.01) C03B 19/14 (2006.01) C03B 37/018 (2006.01) C03C 3/06 (2006.01) H01S 3/17 (2006.01) H01S 3/067 (2006.01) H01S 3/16 (2006.01)

Patent

CA 2472043

An optical waveguide including a core having silica, Al, a non-fluorescent rare-earth ion, Ge, Er, and Tm. The non-fluorescent rare-earth ion may be La. Exemplary compositions concentrations are Er is from 15 ppm to 3000 ppm, Al is from 0.5 mol% to 12 mol%, La is less than or equal to 2 mol%, Tm is from 15 ppm to 10,000 ppm; and the Ge is less than or equal to 15 mol%. The core may further include F. An exemplary concentration of F is less than or equal to 6 anion mol%.

L'invention concerne un guide d'ondes optique pourvu d'un noyau contenant du silicate, Al, un ion de terres rares non fluorescent, Ge, Er et Tm. L'ion de terres rares non fluorescent peut être La. Des concentrations de compositions exemplaires présentent Er compris entre 15 ppm et 3000 ppm, Al compris entre 0,5 % en moles et 12 % en moles, La inférieur ou égal à 2 % en moles, Tm compris entre 15 ppm et 10 000 ppm, et Ge inférieur ou égal à 15 % en moles. Le noyau peut également contenir F. Une concentration exemplaire de F est inférieure ou égale à 6 % en moles d'anions.

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