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:
Apr. 10, 2007
Filed:
Sep. 30, 2005
Applicants:
Antonio Mecozzi, Rome, IT;
Jonathan A. Nagel, Brooklyn, NY (US);
Mark Shtaif, Fort Lee, NJ (US);
Moshe Tur, Tel-Aviv, IL;
Inventors:
Antonio Mecozzi, Rome, IT;
Jonathan A. Nagel, Brooklyn, NY (US);
Mark Shtaif, Fort Lee, NJ (US);
Moshe Tur, Tel-Aviv, IL;
Assignee:
AT&T Corp., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); H04B 10/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Methods and systems for higher-order PMD compensation are implemented by developing an effective mathematical model and applying economical design techniques to the model. By assuming a constant precession rate for a narrow band of frequencies in an optical signal, a simplified model of a higher-order PMD compensator can be derived. The model can be used produce an economical compensator by making multiple uses of selected optical components.