OPTICAL SWITCH SYSTEMS USING WAVEGUIDE GRATING−BASED WAVELENGTH SELECTIVE SWITCH MODULES - Patent 1438619

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EP 1 438 619 A1

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(43)	Date of publication:
	21.07.2004 Bulletin 2004/30

(21)	Application number: 02789215.7

(22)	Date of filing: 18.10.2002

(51)	International Patent Classification (IPC)⁷: G02B 6/34, G02B 6/35

(86)	International application number:
	PCT/US2002/033341

(87)	International publication number:
	WO 2003/036355 (01.05.2003 Gazette 2003/18)

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

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Priority:

22.10.2001 US 348927 P
19.04.2002 US 373803 P

(71)	Applicant: Integrated Optics Commincations Corp.
	Sunnyvale, CA 94085 (US)

(72)	Inventors:
	ZHANG, Jianjun Cupertino, CA 95014 (US) LING, Peiching San Jose, CA 95129 (US) CHEN, Jinliang Saratoga, CA 95070 (US) XU, Ming San Jose, CA 95119 (US)

(74)	Representative: Hackney, Nigel John et al
	Mewburn Ellis LLPYork House,23 Kingsway London WC2B 6HP London WC2B 6HP (GB)

(54)	OPTICAL SWITCH SYSTEMS USING WAVEGUIDE GRATING−BASED WAVELENGTH SELECTIVE SWITCH MODULES