The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2003
Filed:
Nov. 03, 2000
Alain Beguin, Vulaines sur Seine, FR;
Patrice Camy, Paris, FR;
Pascale LaBorde, Corning, NY (US);
Christian Lerminiaux, Fontainbleau, FR;
Corning Incorporated, Corning, NY (US);
Abstract
Phosphate free, Er/Yb co-doped borosilicate glass compositions and optical devices made from said compositions are disclosed; said compositions comprising, for 100 parts by weight of: 60 to 70 parts by weight SiO or SiO +GeO with SiO always being greater than 40 parts by weight, 8 to 12 parts by weight of B O , 10 to 25 parts by weight M O wherein M O is an alkali metal oxide, 0 to 3 parts by weight of BaO, 0.1 to 5 parts by weight Er O , and from 0.1 to 12 parts by weight of Yb O and from 0 to less than 5 parts by weight F; and within which, the boron atoms are of tetrahedral spatial coordination.