Patents by Inventor Alka K. Gadkaree

Alka K. Gadkaree 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).

  • Temperature compensated integrated planar bragg grating, and method of formation
    Patent number: 6317528
    Abstract: An integrated planar Bragg grating is fabricated by depositing layers of material onto a negative expansion substrate to form a waveguide, which is held in mechanical tension with the substrate. A Bragg grating is then formed in the waveguide. As the temperature of the waveguide increases, the mechanical tension between the waveguide and the substrate is relieved, such that the peak reflection wavelength of the Bragg grating remains nearly constant.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: November 13, 2001
    Assignee: Corning Incorporated
    Inventors: Alka K. Gadkaree, Kishor P. Gadkaree