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. 18, 2007
Filed:
Apr. 29, 2003
Applicants:
Richard Epworth, Sawbridgeworth, GB;
Peter Anslow, Bishops Stortford, GB;
Christopher R Fludger, Cambridge, GB;
Inventors:
Richard Epworth, Sawbridgeworth, GB;
Peter Anslow, Bishops Stortford, GB;
Christopher R Fludger, Cambridge, GB;
Assignee:
Nortel Networks Limited, St. Laurent, Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Use in an optical communications system of multiple detectors to separately detect respective multiple spectral modes of a received optical signal. The invention also provides for corresponding multi-channel, dispersion-tolerant optical receivers. Embodiments are presented both for direct detection and for coherent detection of optical signals.