GLASS FOR HIGH AND FLAT GAIN 1.55 $g(m)m OPTICAL AMPLIFIERS - Patent 1010220

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EP 1 010 220 A1

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(43)	Date of publication:
	21.06.2000 Bulletin 2000/25

(21)	Application number: 98943193.7

(22)	Date of filing: 12.08.1998

(51)	International Patent Classification (IPC)⁷: H01S 3/00, H01S 3/17, C03C 3/247, C03C 3/23, C03C 4/12

(86)	International application number:
	PCT/US9816/791

(87)	International publication number:
	WO 9913/541 (18.03.1999 Gazette 1999/11)

(84)	Designated Contracting States:
	DE FR GB IT SE

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Priority:

05.09.1997 FR 9711054

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

(72)	Inventor:
	PRASSAS, Michel F-77870 Vulaines-sur-Seine (FR)

(74)	Representative: Marchant, James Ian et al
	Elkington and Fife,Prospect House,8 Pembroke Road Sevenoaks,Kent TN13 1XR Sevenoaks,Kent TN13 1XR (GB)

(54)	GLASS FOR HIGH AND FLAT GAIN 1.55 $g(m)m OPTICAL AMPLIFIERS