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. 04, 2007
Filed:
Oct. 15, 2001
Kim B. Roberts, Nepean, CA;
Giuseppe G. Bordogna, Ottawa, CA;
Riyaz R. Jamal, Nepean, CA;
Douglas D. Mcghan, Ottawa, CA;
Maurice S. O'sullivan, Ottawa, CA;
Kim B. Roberts, Nepean, CA;
Giuseppe G. Bordogna, Ottawa, CA;
Riyaz R. Jamal, Nepean, CA;
Douglas D. McGhan, Ottawa, CA;
Maurice S. O'Sullivan, Ottawa, CA;
Nortel Networks Limited, St. Laurent, Quebec, CA;
Abstract
A method and system enables measurement of polarization dependent loss (PDL) in an optical communications system including a plurality of cascaded optical components. An optical signal having a predetermined initial polarization state is launched into the optical communications system. A polarization state of the signal is detected at a selected detection point downstream of the launch point. The PDE is evaluated using the predetermined initial polarization state and the detected polarization state.