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:
Jun. 17, 2008
Filed:
Mar. 17, 2005
Applicants:
Robin Rickard, Harlow, GB;
Hual Kee, Old Harlow, GB;
Alan Robinson, Harlow, GB;
Inventors:
Assignee:
Nortel Networks Limited, St. Laurent, Quebec, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical receiver for receiving an optical differential phase shift keyed signal has an optical component sensitive to the optical phase of the signal, such as an interferometer, a device arranged to generate a control signal by non linear limiting of an output of the optical component, such as an RF amplifier arranged to operate in a region near saturation point, and a phase controller for tuning a phase response of the optical component to the received signal according to the control signal.