US Patent No: 6,748,150

Number of patents in Portfolio can not be more than 2000

Apparatus and method for managing dispersion within an optical add/drop module

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Importance

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Abstract

The invention comprises a method and apparatus for implementing a relatively low cost add/drop multiplexer (OADM) wherein pre-demux and post-mux dispersion compensation is employed in a manner that substantially avoids imparting additional dispersion compensation to pass-through wavelength channels in a WDM system.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LUCENT TECHNOLOGIES INC.MURRAY HILL, NJ9561

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dutta, Ranjan Lawrenceville, NJ 8 47
Grosz, Diego Fernando Middletown, NJ 4 6
Gurevich, Alejandra B Maplewood, NJ 1 1
Kung, Alain P Fribourg, CH 2 4
Spector, Magaly Holmdel, NJ 7 125

Cited Art

Patent Info (Count) # Cites Year
 
HITACHI, LTD. (2)
6,563,978 Optical transmission system and optical coupler/branching filter 4 2001
6,577,439 Optical amplifier 3 2002
 
ALCATEL NETWORK SYSTEMS, INC. (1)
5,224,183 Multiple wavelength division multiplexing signal compensation system and method using same 114 1992
 
AT&T CORP. (1)
6,577,422 Long reach delivery of broadcast services using broadband optical sources and pre-compensation dispersion 8 1999
 
CIENA CORPORATION (1)
2002/0159,119 Method and system for providing dispersion and dispersion slope compensation 7 2001
 
EZCONN CORPORATION (1)
6,396,609 Dispersion compensation for optical systems 5 1999
 
FUJITSU LIMITED (1)
6,243,176 Optical wavelength multiplex transmission method and optical dispersion compensation method 18 1997
 
KDD CORPORATION AND KDD SUBMARINE CABLE SYSTEMS, INC., JOINTLY (1)
6,594,428 Dispersion compensating optical transmission line and system 11 2000
 
LUCENT TECHNOLOGIES INC. (1)
5,999,290 Optical add/drop multiplexer having complementary stages 35 1997

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
FUJITSU LIMITED (1)
8,412,045 Propagation apparatus and dispersion value setting method 0 2009

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