Patents by Inventor Joseph F. Schroeder

Joseph F. Schroeder 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 making optical fiber devices and devices thereof
    Patent number: 6754429
    Abstract: The invention provides a method of making optical fiber devices.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: June 22, 2004
    Assignee: Corning Incorporated
    Inventors: Nicholas F. Borrelli, Joseph F. Schroeder, Alexander Streltsov, Edward F. Murphy
  • Laser-written cladding for waveguide formations in glass
    Publication number: 20030215204
    Abstract: High-energy pulses of femtosecond lasers form cladding portions of waveguides in bulk glass by producing localized reductions in refractive index. The cladding portions written by the high-energy pulses circumscribe unexposed core portions for defining light-guiding pathways in the bulk glass.
    Type: Application
    Filed: May 16, 2002
    Publication date: November 20, 2003
    Inventors: Joseph F. Schroeder, Alexander Streltsov
  • Manipulating the size of waveguides written into substrates using femtosecond laser pulses
    Publication number: 20030099452
    Abstract: Waveguides produced in bulk glass using femtosecond pulsed lasers have diameters and refractive index profiles that are manipulated by additional motions or beams. For example, spot focuses of the femtosecond pulsed lasers trace overlapping or widened tracks by superimposing additional relative motions between the spot focuses and the bulk glass. Additional femtosecond pulsed beams can also be used to produced widened waveguides.
    Type: Application
    Filed: November 28, 2001
    Publication date: May 29, 2003
    Inventors: Nicholas F. Borrelli, Joseph F. Schroeder, Alexander Streltsov
  • Method of making optical fiber devices and devices thereof
    Publication number: 20030007772
    Abstract: The invention provides a method of making optical fiber devices.
    Type: Application
    Filed: June 25, 2002
    Publication date: January 9, 2003
    Inventors: Nicholas F. Borrelli, Joseph F. Schroeder, Alexander Streltsov, Edward F. Murphy
  • Direct writing of optical devices in silica-based glass using femtosecond pulse lasers
    Publication number: 20020076655
    Abstract: The invention relates to methods of writing a light-guiding structure in a bulk glass substrate. The bulk glass substrate is preferably made from a soft silica-based material having an annealing point less than about 1380°K. A pulsed laser beam is focused within the substrate while the focus is translated relative to the substrate along a scan path at a scan speed effective to induce an increase in the refractive index of the material along the scan path. Substantially no laser-induced physical damage of the material is incurred along the scan path. Various optical devices can be made using this method.
    Type: Application
    Filed: September 17, 2001
    Publication date: June 20, 2002
    Inventors: Nicholas F. Borrelli, Joseph F. Schroeder, Charlene M. Smith, Alexander Streltsov