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:
Jul. 15, 2008
Filed:
Aug. 30, 2002
Harshad Sardesai, Ellicott City, MD (US);
Michael Taylor, Laurel, MD (US);
Sanjaykumar Upadhyay, Pasadena, MD (US);
Harshad Sardesai, Ellicott City, MD (US);
Michael Taylor, Laurel, MD (US);
Sanjaykumar Upadhyay, Pasadena, MD (US);
Ciena Corporation, Linthicum, MD (US);
Abstract
Chromatic dispersion in a high speed CS-RZ WDM transmission system is reduced by providing tailored 'precompensation' for individual and/or groups of optical signals. Such precompensation is achieved by passing the optical signals through a dispersion compensating elements, such as dispersion compensating fiber, within an optical multiplexer, i.e., prior to multiplexing the signals onto a single optical fiber. Additional dispersion compensation can be performed in optical amplifiers and within an optical demultiplexer downstream from the optical multiplexer.