Patents by Inventor Sangeeta Mohanty

Sangeeta Mohanty 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 for producing twisted optical fiber with reduced polarization mode dispersion
    Patent number: 7310974
    Abstract: A method for drawing an optical fiber having reduced polarization mode dispersion (PMD) draws an optical fiber from an optical fiber preform whose core ovality is at max about 3%, coats the optical fiber with acrylic polymer and twists the coated optical fiber with a pair of spinning wheels. The twisting of the fiber is achieved by four discrete spin rates that repeat in a periodic fashion after the drawing of certain lengths of the optical fiber. At least one of the spin rates varies in a trapezoidal manner along the respective one of drawn lengths of the optical fiber.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: December 25, 2007
    Assignee: Sterlite Optical Technologies Limited
    Inventors: Sangeeta Mohanty, Nacham Sridhar, Salaj Sinha, Nitesh Gulati, Sthitadhi Das
  • Method for producing twisted optical fiber with reduced polarization mode dispersion
    Publication number: 20040163418
    Abstract: A method for drawing an optical fiber having reduced polarization mode dispersion (PMD) draws an optical fiber from an optical fiber preform whose core ovality is at max about 3%, coats the optical fiber with acrylic polymer and twists the coated optical fiber with a pair of spinning wheels. The twisting of the fiber is achieved by four discrete spin rates that repeat in a periodic fashion after the drawing of certain lengths of the optical fiber. At least one of the spin rates varies in a trapezoidal manner along the respective one of drawn lengths of the optical fiber.
    Type: Application
    Filed: January 9, 2004
    Publication date: August 26, 2004
    Applicant: STERLITE OPTICAL TECHNOLOGIES LIMITED
    Inventors: Sangeeta Mohanty, Nacham Sridhar, Salaj Sinha, Nitesh Gulati, Sthitadhi Das