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:
May. 22, 2007
Filed:
Apr. 29, 2005
Xin Chen, Corning, NY (US);
Charles F. Laing, Wilmington, NC (US);
Ming-jun LI, Horseheads, NY (US);
Sonya M. Raney, Wrightsville Beach, NC (US);
Xin Chen, Corning, NY (US);
Charles F. Laing, Wilmington, NC (US);
Ming-Jun Li, Horseheads, NY (US);
Sonya M. Raney, Wrightsville Beach, NC (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method for measuring longitudinal variation in chromatic dispersion in an optical fiber, comprising: (i) launching into a first end and a second end of optical fiber an optical signal at a wavelength λto collect backscatter power P(z) for different positions z within said optical fiber and providing measured OTDR backscatter traces; (ii) deriving from the measured OTDR backscatter traces at the single OTDR wavelength λeither (a) the longitudinal MFD(z) data or (b) the relative MFD data; and (iii) calculating estimated longitudinal dispersion D(z) from the longitudinal MFD(z) data or the relative MFD data, without utilizing any other wavelength data.