DIRECT WRITING OF OPTICAL DEVICES IN SILICA-BASED GLASS USING FEMTOSECOND PULSE LASERS - Patent 1204977

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EP 1 204 977 A1

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

(21)	Application number: 00950775.7

(22)	Date of filing: 28.07.2000

(51)	International Patent Classification (IPC)⁷: G11C 13/04

(86)	International application number:
	PCT/US0020/446

(87)	International publication number:
	WO 0109/899 (08.02.2001 Gazette 2001/06)

(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

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Priority:

29.07.1999 US 146274 P

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

(72)	Inventors:
	BORRELLI, Nicholas, F. Elmira, NY 14905 (US) SMITH, Charlene, M. Corning, NY 14830 (US)

(74)	Representative: Greene, Simon Kenneth et al
	Elkington and Fife,Prospect House,8 Pembroke Road Sevenoaks,Kent TN13 1XR Sevenoaks,Kent TN13 1XR (GB)

(54)	DIRECT WRITING OF OPTICAL DEVICES IN SILICA-BASED GLASS USING FEMTOSECOND PULSE LASERS