METHOD AND APPARATUS FOR MANUFACTURING A RARE EARTH METAL DOPED OPTICAL FIBER PREFORM - Patent 1098857

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EP 1 098 857 A1

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(43)	Date of publication:
	16.05.2001 Bulletin 2001/20

(21)	Application number: 99938710.3

(22)	Date of filing: 30.06.1999

(51)	International Patent Classification (IPC)⁷: C03B 37/018, C03B 37/027, C03C 25/10

(86)	International application number:
	PCT/US9914/849

(87)	International publication number:
	WO 0000/442 (06.01.2000 Gazette 2000/01)

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

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Priority:

30.06.1998 US 91290 P
30.06.1998 US 91154 P

(71)	Applicant: SDL, Inc.
	San Jose, CA 95134-1365 (US)

(72)	Inventors:
	ZHANG, Ying-Hua Waltham, MA 02451 (US) LALIBERTE, Brian, M. Winchester, MA 01890 (US) ROBINSON, Ray, F. Wilmington, MA 01887 (US)

(74)	Representative: Grünecker, Kinkeldey, Stockmair & SchwanhäusserAnwaltssozietät
	Maximilianstrasse 58 80538 München 80538 München (DE)

(54)	METHOD AND APPARATUS FOR MANUFACTURING A RARE EARTH METAL DOPED OPTICAL FIBER PREFORM