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. 30, 2015
Filed:
Sep. 16, 2011
Joseph Kakande, Southampton, GB;
Francesca Parmigiani, Southampton, GB;
Periklis Petropoulos, Southampton, GB;
David John Richardson, Southampton, GB;
Radan Slavik, Southampton, GB;
Joseph Kakande, Southampton, GB;
Francesca Parmigiani, Southampton, GB;
Periklis Petropoulos, Southampton, GB;
David John Richardson, Southampton, GB;
Radan Slavik, Southampton, GB;
University of Southampton, Southampton, GB;
Abstract
An optical regenerator for regenerating a multi-level phase encoded signal. A first non-linear medium (HNLF) generates a comb of frequency harmonics from the signal under the action of a coherent pump, each component bearing the phase encoded data. A filter selects the first and (M−1)th order components. The filtered signal is then input to a second non-linear medium (HNLF) where a further pump is applied, to coherently add the first and (M−1)th order components and regenerate the signal by reducing phase noise.