Bidirectional multiplexer and demultiplexer based on a single echelle waveguide grating

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EP 1 225 461 B8

(12)	CORRECTED EUROPEAN PATENT SPECIFICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 B1)

(48)	Corrigendum issued on:
	19.09.2007 Bulletin 2007/38

(45)	Mention of the grant of the patent:
	18.07.2007 Bulletin 2007/29

(21)	Application number: 01811246.6

(22)	Date of filing: 19.12.2001

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International Patent Classification (IPC):

G02B 6/293^(2006.01)
G02B 6/34^(2006.01)

G02B 6/12^(2006.01)

(54)	Bidirectional multiplexer and demultiplexer based on a single echelle waveguide grating Auf einem einzigen Stufengitter basierender bidirektionaler Wellenlängenmultiplexer/-demultiplexer Multiplexeur et démultiplexeur bidirectionnels basés sur un seul réseau de guides d'onde en échelle

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

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Priority:

06.03.2001 US 799013
22.12.2000 US 257095 P

(43)	Date of publication of application:
	24.07.2002 Bulletin 2002/30

(73)	Proprietor: Enablence Inc.
	Ottawa, ON K2K 3H4 (CA)

(72)	Inventors:
	He, Jian-Jun Ottawa, Ontario K1K 4R8 (CA) Berolo, Orazio Ottawa, Ontario K1S 2J7 (CA) Davies, Michael Ottawa, Ontario K1M 1W1 (CA)

(74)	Representative: Frei, Alexandra Sarah
	Frei Patentanwaltsbüro Postfach 1771 8032 Zürich 8032 Zürich (CH)

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References cited: :

EP-A- 0 250 824
GB-A- 2 219 869
US-A- 5 414 548

EP-A- 0 911 659
US-A- 5 228 103
US-A- 5 937 113

REINHARD MÄRZ: "Integrated Optics: Design and Modeling" 1994 , ARTECH HOUSE , NORWOOD XP002278840 ISBN: 0-89006-668-X * chapter 8.2 *

Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).