LOW LOSS, OPTICAL ADD/DROP WDM NODE - Patent 0979564

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EP 0 979 564 A2

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(88)	Date of publication A3:
	04.02.1999

(43)	Date of publication:
	16.02.2000 Bulletin 2000/07

(21)	Application number: 98920810.3

(22)	Date of filing: 30.04.1998

(51)	International Patent Classification (IPC)⁷: H04J 14/02

(86)	International application number:
	PCT/SE9800/801

(87)	International publication number:
	WO 9849/794 (05.11.1998 Gazette 1998/44)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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Priority:

30.04.1997 SE 9701668

(71)	Applicant: Telefonaktiebolaget L M Ericsson (Publ)
	126 25 Stockholm (SE)

(72)	Inventor:
	SUNDELIN, Magnus S-113 33 Stockholm (SE)

(74)	Representative: Rosenquist, Per Olof et al
	P O Rosenquist Patentbyra ABP.O. Box 260 151 23 Södertälje 151 23 Södertälje (SE)

(54)	LOW LOSS, OPTICAL ADD/DROP WDM NODE