The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2004
Filed:
Apr. 30, 2003
Applicant:
Inventors:
Ranjan Dutta, East Windsor, NJ (US);
Diego Fernando Grosz, Middletown, NJ (US);
Alejandra B. Gurevich, Maplewood, NJ (US);
Alain P. Kung, Fribourg, CH;
Magaly Spector, Holmdel, NJ (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/42 ; H04J 1/402 ;
U.S. Cl.
CPC ...
G02B 6/42 ; H04J 1/402 ;
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.