USE OF PHASE SHIFT KEYED COHERENT OPTICAL SIGNALING IN A WAVELENGTH DIVISION MULTIPLEXED OPTICAL FIBER LINKS - Patent 1256193

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EP 1 256 193 A1

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(43)	Date of publication:
	13.11.2002 Bulletin 2002/46

(21)	Application number: 01946995.6

(22)	Date of filing: 11.01.2001

(51)	International Patent Classification (IPC)⁷: H04B 10/02, H04B 10/04, H04B 10/16

(86)	International application number:
	PCT/US0100/851

(87)	International publication number:
	WO 0105/6196 (02.08.2001 Gazette 2001/31)

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

26.01.2000 US 491274

(71)	Applicant: Lockheed Martin Corporation
	Bethesda, MD 20817 (US)

(72)	Inventors:
	SPICKERMANN Ralph Redwood City, CA 94061 (US) The other inventor has agreed to waive his entitlement to designation.

(74)	Representative: Ertl, Nicholas Justin
	Elkington and Fife,Prospect House,8 Pembroke Road Sevenoaks,Kent TN13 1XR Sevenoaks,Kent TN13 1XR (GB)

(54)	USE OF PHASE SHIFT KEYED COHERENT OPTICAL SIGNALING IN A WAVELENGTH DIVISION MULTIPLEXED OPTICAL FIBER LINKS