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:
Jul. 08, 2003
Filed:
Jun. 29, 2001
Matthew J. Dejneka, Corning, NY (US);
Jean-Philippe de Sandro, Kirkland, CA;
Alexandre M. Mayolet, Auneau, FR;
Bryce N. Samson, Horseheads, NY (US);
Ji Wang, Painted Post, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A Tm-doped germanate glass composition comprises GeO having a concentration of at least 20 mole percent, Tm O having a concentration of about 0.001 mole percent to about 2 mole percent, and Ga O , having a concentration of about 2 mole percent to about 40 mole percent. The composition can further include an alkaline earth metal compound selected from the group consisting of MgO, CaO, SrO, BaO, BaF , MgF , CaF , SrF , BaCl , MgCl , CaCl , SrCl , BaBr , MgBr , CaBr , SrBr , and combinations thereof, and having a non-zero concentration of less than about 40 mole percent. The composition can further include an alkali metal compound selected from the group consisting of Li O, Na O, K O, Rb O, Cs O, Li F , Na F , K F , Rb F , Cs F , Li Cl , Na Cl , K Cl , Rb Cl , Cs Cl , Li Br , Na Br , K Br , Rb Br , Cs Br and combinations thereof, and having a non-zero concentration of less than about 20 mole percent. The emission bandwidth of the composition in the 1450 nm to 1530 nm range can be varied on the basis of one or more composition ratios. A Tm-doped germanate optical amplifier can amplify optical signals in the S-band region of the electromagnetic spectrum.