(19)
(11) EP 1 204 612 A1

(12)

(43) Date of publication:
15.05.2002 Bulletin 2002/20

(21) Application number: 00941481.4

(22) Date of filing: 16.06.2000
(51) International Patent Classification (IPC)7C03C 3/095
(86) International application number:
PCT/US0016/626
(87) International publication number:
WO 0107/374 (01.02.2001 Gazette 2001/05)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 21.07.1999 FR 9909459

(71) Applicant: CORNING INCORPORATED
Corning, N.Y. 14831 (US)

(72) Inventors:
  • BROCHETON, Yves, A.
    F-94120 Fontenay-Sous-Bois (FR)
  • DICKINSON, James, E., Jr.
    Corning, NY 14830 (US)
  • JACOB, David
    F-77210 Avon (FR)
  • PRASSAS, Michel
    F-77870 Vulaines-sur-Seine (FR)

(74) Representative: Reinhard - Skuhra - Weise & Partner 
Friedrichstrasse 31
80801 München
80801 München (DE)

   


(54) BORATE OR ALUMINOSILICATE GLASS COMPOSITION FOR OPTICAL AMPLIFICATION