Patents by Inventor Melanie L. Elder

Melanie L. Elder 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).

  • Phosphate glass useful in high energy lasers
    Patent number: 5526369
    Abstract: In a high energy laser system utilizing phosphate laser glass components to mplify the laser beam, the laser system requires a generated laser beam having an emission bandwidth of less than 26 nm and the laser glass components consist essentially of (on an oxide composition basis):______________________________________ Mole % ______________________________________ P.sub.2 O.sub.5 50-75 Al.sub.2 O.sub.3 >0-10 K.sub.2 O >0-30 MgO 0-30 CaO 0-30 Li.sub.2 O 0-20 Na.sub.2 O 0-20 Rb.sub.2 O 0-20 Cs.sub.2 O 0-20 BeO 0-20 SrO 0-20 BaO 0-20 ZnO 0-20 PbO 0-20 B.sub.2 O.sub.3 0-10 Y.sub.2 O.sub.3 0-10 La.sub.2 O.sub.3 0-8 Ln.sub.2 O.sub.3 0.01-8 ______________________________________whereinthe sum of MgO and CaO is >0-30;the sum of Li.sub.2 O, Na.sub.2 O, Rb.sub.2 O, and Cs.sub.2 O is 0-20;the sum of BeO, SrO, BaO, ZnO, and PbO is 0-20;the sum of B.sub.2 O.sub.3 and Y.sub.2 O.sub.3 is 0-10; andLn.sub.2 O.sub.3 represents the sum of the oxides of active lasing lanthanides of atomic number 58-71.
    Type: Grant
    Filed: October 7, 1992
    Date of Patent: June 11, 1996
    Assignees: Schott Glass Technologies, Inc., The United States of America as represented by the Department of Energy
    Inventors: Yuiko T. Hayden, Stephen A. Payne, Joseph S. Hayden, John H. Campbell, Mary Kay Aston, Melanie L. Elder
  • 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