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. 28, 2011
Filed:
Dec. 22, 2009
Mikhail Brodsky, Millburn, NJ (US);
Peter Magill, Freehold, NJ (US);
Mikhail Boroditsky, South Amboy, NJ (US);
Cristian Antonelli, Sulmona, IT;
Antonio Mecozzi, L'Aquila, IT;
Mikhail Brodsky, Millburn, NJ (US);
Peter Magill, Freehold, NJ (US);
Mikhail Boroditsky, South Amboy, NJ (US);
Cristian Antonelli, Sulmona, IT;
Antonio Mecozzi, L'Aquila, IT;
AT&T Intellectual Property I, L.P., Atlanta, GA (US);
Abstract
Disclosed is a method and apparatus for determining the birefringence autocorrelation length of a fiber in a non-destructive manner. The PMD of an optical fiber is measured over a first optical spectrum. A Faraday rotation angle is measured over a second optical spectrum. The birefringence autocorrelation length is determined from the measuring of the PMD and the Faraday rotation angle.