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. 20, 2004
Filed:
Mar. 26, 2002
Applicant:
Inventor:
Seb J Savory, Churchill College, GB;
Assignee:
Nortel Networks Limited, St. Laurent, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 2/728 ; H04B 1/018 ;
U.S. Cl.
CPC ...
G02B 2/728 ; H04B 1/018 ;
Abstract
A PMD compensator has three compensation elements in series, each for providing variable differential group delay. Each compensation element provides compensation along a different orthogonal polarization axis. This enables PMD to be cancelled more completely.