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:
Dec. 05, 2017
Filed:
Jul. 09, 2014
Applicant:
Orange, Paris, FR;
Inventors:
Erwan Pincemin, Gommenec'h, FR;
Yann Loussouarn, Lannion, FR;
Assignee:
ORANGE, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/08 (2006.01); H04B 10/079 (2013.01); H04B 10/077 (2013.01);
U.S. Cl.
CPC ...
H04B 10/07953 (2013.01); H04B 10/0775 (2013.01); H04B 2210/074 (2013.01);
Abstract
A method is provided for determining an optical signal to noise ratio of a dual polarization optical signal. The method includes: detecting, in the dual polarization optical signal, a modulation signal which modulates, at at least one low amplitude level that is approximately zero and at a high amplitude level, the dual polarization optical signal, and determining the optical signal to noise ratio from a measurement of the power of the modulation signal.