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. 07, 2011
Filed:
Nov. 01, 2010
Mikhail Boroditsky, South Amboy, NJ (US);
Mikhail Brodsky, Milbourn, NJ (US);
Nicholas J. Frigo, Little Silver, NJ (US);
Peter Magill, Freehold, NJ (US);
Mikhail Boroditsky, South Amboy, NJ (US);
Mikhail Brodsky, Milbourn, NJ (US);
Nicholas J. Frigo, Little Silver, NJ (US);
Peter Magill, Freehold, NJ (US);
AT&T Intellectual Property II, LP, Atlanta, GA (US);
Abstract
A method of determining a mean square differential group delay associated with a length of optical fiber. The method including measuring a polarization mode dispersion vector as a function of frequency, using a frequency-domain polarization mode dispersion measurement apparatus. The method also including calculating a second-order polarization mode dispersion vector as a function of frequency by calculating a derivative of the polarization mode dispersion vector with respect to frequency. Also, calculating the mean of the magnitude of the second-order polarization mode dispersion vector to obtain a first result. Further, multiplying a proportionality coefficient by the first result to calculate the mean square differential group delay.