Patents by Inventor Ralph Henry Page

Ralph Henry Page 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).

  • Integrated-optic device and a method for attenuating light or equalizing light using integrated-optic device
    Patent number: 6885791
    Abstract: An integrated-optic attenuator/equalizer device comprising a photorefractive substrate, at least one optical waveguide channel formed in the substrate, at least one diffractive-Bragg grating formed in the substrate, and a diffractive-Bragg grating modulator that is capable of modulating the diffractive Bragg grating(s). The diffractive-Bragg grating(s) intersects the optical waveguide channel. When a diffractive-Bragg grating formed in the substrate is modulated, at least a fraction of light of a wavelength associated with the modulated diffractive-Bragg grating is re-directed by the modulated diffractive-Bragg grating, thereby preventing the re-directed fraction of light from arriving at the output of the optical waveguide channel.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: April 26, 2005
    Assignee: Agilent Technologies, Inc.
    Inventors: Tong Xie, Yakov Sidorin, Falgun Patel, Ralph Henry Page
  • Integrated-optic out-coupler device and method for making and using the same
    Patent number: 6567589
    Abstract: An integrated-optic device comprising a photorefractive substrate, an optical waveguide channel and at least one diffractive Bragg grating integrated in the substrate and intersecting the optical waveguide channel. The diffractive Bragg grating(s) causes at least a fraction of light coupled into the optical waveguide channel to be coupled out of the optical waveguide channel.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: May 20, 2003
    Assignee: Agilent Technologies, Inc.
    Inventors: Yakov Sidorin, Tong Xie, Ralph Henry Page, Falgun Patel
  • Integrated-optic device and a method for operating on light
    Publication number: 20030063835
    Abstract: An integrated-optic device comprising a photorefractive substrate, at least one optical waveguide channel formed in the substrate, and at least one diffractive-Bragg grating formed in the substrate. The diffractive-Bragg grating(s) intersects the optical waveguide channel. The diffractive-Bragg grating(s) is configurable to cause at least a fraction of light of at least one wavelength that has been coupled into an input of the optical waveguide channel to be re-directed by the diffractive-Bragg grating(s), thereby preventing the re-directed fraction of light from arriving at the output of the optical waveguide channel.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 3, 2003
    Inventors: Ralph Henry Page, Falgun Dineshchandra Patel, Tong Xie, Yakov Sidorin
  • INTEGRATED-OPTIC OUT-COUPLER DEVICE AND A METHOD FOR MAKING AND USING THE SAME
    Publication number: 20030063856
    Abstract: An integrated-optic device comprising a photorefractive substrate, an optical waveguide channel and at least one diffractive Bragg grating integrated in the substrate and intersecting the optical waveguide channel. The diffractive Bragg grating(s) causes at least a fraction of light coupled into the optical waveguide channel to be coupled out of the optical waveguide channel.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 3, 2003
    Inventors: Yakov Sidorin, Tong Xie, Ralph Henry Page, Falgun Patel
  • Integrated-optic device and a method for attenuating light or equalizing light using integrated-optic device
    Publication number: 20030063831
    Abstract: An integrated-optic attenuator/equalizer device comprising a photorefractive substrate, at least one optical waveguide channel formed in the substrate, at least one diffractive-Bragg grating formed in the substrate, and a diffractive-Bragg grating modulator that is capable of modulating the diffractive Bragg grating(s). The diffractive-Bragg grating(s) intersects the optical waveguide channel. When a diffractive-Bragg grating formed in the substrate is modulated, at least a fraction of light of a wavelength associated with the modulated diffractive-Bragg grating is re-directed by the modulated diffractive-Bragg grating, thereby preventing the re-directed fraction of light from arriving at the output of the optical waveguide channel.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 3, 2003
    Inventors: Tong Xie, Yakov Sidorin, Falgun Patel, Ralph Henry Page