Patents by Inventor Marcella R. Backer

Marcella R. Backer 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).

  • Optical waveguide fiber with titania-silica outer cladding and method of manufacturing
    Patent number: 5180411
    Abstract: A method of making an optical waveguide fiber with a fatigue resistant TiO.sub.2 -SiO.sub.2 outer cladding, and a substantially glass blank for drawing into such fiber, wherein a glass soot TiO.sub.2 -SiO.sub.2 outermost layer, with an initial TiO.sub.2 concentration greater than 10.5 wt. %, is deposited on a preform, and the preform is exposed to an atmosphere of chlorine and oxygen at a high temperature, and the resulting TiO.sub.2 concentration in the outermost layer of the TiO.sub.2 -SiO.sub.2 outer cladding of the substantially glass blank is less than the initial TiO.sub.2 concentration. In the glass blank form, the outermost layer includes a substantial volume percentage of crystalline phases and in the fiber form, the outermost layer includes inhomogeneities.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: January 19, 1993
    Assignee: Corning Incorporated
    Inventors: Marcella R. Backer, Ralston R. Cavender, Jr., Peter C. Jones, James A. Murphy
  • Optical waveguide fiber with titania-silica outer cladding
    Patent number: 5140665
    Abstract: An optical waveguide fiber with a fatigue resistant TiO.sub.2 -SiO.sub.2 outer cladding including a cylindrical outermost layer with TiO.sub.2 concentration greater than 10.5 wt. % and thickness less than 3 .mu.m. The fiber may include a two layer outer cladding with higher TiO.sub.2 concentration in the outer layer. The outer cladding may include a plurality of inhomogeneities dispersed in a TiO.sub.2 -SiO.sub.2 matrix.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: August 18, 1992
    Assignee: Corning Incorporated
    Inventors: Marcella R. Backer, Michael G. Blankenship, Ralston Cavender, Bernard de Jong, Melanie L. Elder, Gregory S. Glaesemann, Peter C. Jones
  • Method of manufacturing optical waveguide fiber with titania-silica outer cladding
    Patent number: 5067975
    Abstract: A method of making an optical waveguide fiber with a fatigue resistant TiO.sub.2 -SiO.sub.2 outer cladding, and a substantially glass blank for drawing into optical fiber, wherein a glass soot TiO.sub.2 -SiO.sub.2 outermost layer, with an initial TiO.sub.2 concentration greater than 10.5 wt. %, is deposited on a preform, and the preform is exposed to an atmosphere of chlorine at a high temperature, and the resulting TiO.sub.2 concentration in the outermost layer of the TiO.sub.2 -SiO.sub.2 outer cladding of the substantially glass blank is less than the initial TiO.sub.2 concentration. In the glass blank form, the outermost layer includes a substantial volume percentage of crystalline phases and in the fiber form, the outermost layer includes inhomogeneities.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: November 26, 1991
    Assignee: Corning Incorporated
    Inventors: Marcella R. Backer, Ralston Cavender, Melanie L. Elder, Peter C. Jones, James A. Murphy