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:
Sep. 30, 2014
Filed:
Jan. 10, 2011
Applicants:
Xiang Zhou, Holmdel, NJ (US);
Guifang LI, Orlando, FL (US);
Eduardo F. Mateo, Princeton, NJ (US);
Inventors:
Assignee:
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/00 (2013.01); H04B 10/12 (2006.01); H04B 10/2569 (2013.01); H04B 10/2543 (2013.01); H04B 10/2507 (2013.01); H04B 10/2513 (2013.01); H04B 10/2537 (2013.01);
U.S. Cl.
CPC ...
H04B 10/2513 (2013.01); H04B 10/2569 (2013.01); H04B 10/2543 (2013.01); H04B 10/2572 (2013.01); H04B 10/2537 (2013.01);
Abstract
Exemplary embodiments include a method and systems for impairment compensation in a communication system. The systems can include an electronic phase conjugation system that receives an incoming optical signal from a first section of a fiber optic link, converts the incoming optical signal to an in-phase electric signal and a quadrature electrical signal, and generates a phase conjugated outgoing optical signal from the in-phase and quadrature electrical signals. The phase conjugated outgoing optical signal compensates for impairment of the fiber in the communication system.