Patents by Inventor Sonya M. Raney

Sonya M. Raney has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of estimating and measuring longitudinal dispersion in optical fibers
    Patent number: 7221439
    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 ?1 to 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 ?1 either (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.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: May 22, 2007
    Assignee: Corning Incorporated
    Inventors: Xin Chen, Charles F. Laing, Ming-Jun Li, Sonya M. Raney