Patents by Inventor Tony Sarto

Tony Sarto 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).

  • REDUCTION OF POLARIZATION-DEPENDENT LOSS IN DOUBLE-PASS GRATING CONFIGURATIONS
    Publication number: 20130258470
    Abstract: Optical systems for routing light that reduce or eliminate polarization-dependent loss are provided. Such optical systems generally accommodate an optical element that has an intrinsic polarization-dependent loss and which is disposed to be encountered twice by the light being routed. In some instances, the optical element may be a dispersive element such as a diffraction grating or prism, but the invention has more general applicability. The optical system additionally includes both a reflective element and a wave plate assembly disposed to be encountered by the light between encounters with the dispersive element.
    Type: Application
    Filed: May 30, 2013
    Publication date: October 3, 2013
    Inventors: Paulo E. X. Silveira, Tony Sarto, Larry Fabiny, Marko Voitel
  • Reduction of polarization-dependent loss in double-pass grating configurations
    Patent number: 8457501
    Abstract: Optical systems for routing light that reduce or eliminate polarization-dependent loss are provided. Such optical systems generally accommodate an optical element that has an intrinsic polarization-dependent loss and which is disposed to be encountered twice by the light being routed. In some instances, the optical element may be a dispersive element such as a diffraction grating or prism, but the invention has more general applicability. The optical system additionally includes both a reflective element and a wave plate assembly disposed to be encountered by the light between encounters with the dispersive element.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: June 4, 2013
    Assignee: Altera Corporation
    Inventors: Paulo E. X. Silveira, Tony Sarto, Larry Fabiny, Marko Voitel
  • Diffraction grating with reduced polarization-dependent loss
    Patent number: 6995910
    Abstract: A diffraction grating that achieves high diffraction efficiency at all polarizations for optical signals at telecommunications wavelengths is provided. The diffraction grating has a substrate and a plurality of reflective faces oriented at respective blaze angles ?b spaced along the substrate surface, with the blaze angles substantially differ from the Lit trow condition. Each reflective surface is supported by a support wall connected substantially with the substrate surface.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: February 7, 2006
    Assignee: PTS Corporation
    Inventors: Larry Fabiny, Tony Sarto
  • Diffraction grating with reduced polarization-dependent loss
    Publication number: 20030016449
    Abstract: A diffraction grating that achieves high diffraction efficiency at all polarizations for optical signals at telecommunications wavelengths is provided. The diffraction grating has a substrate and a plurality of reflective faces oriented at respective blaze angles &thgr;b spaced along the substrate surface, with the blaze angles substantially differ from the Littrow condition. Each reflective surface is supported by a support wall connected substantially with the substrate surface.
    Type: Application
    Filed: September 10, 2002
    Publication date: January 23, 2003
    Applicant: Network Photonics, Inc.
    Inventors: Larry Fabiny, Tony Sarto
  • Reduction of polarization-dependent loss in double-pass grating configurations
    Publication number: 20020196496
    Abstract: Optical systems for routing light that reduce or eliminate polarization-dependent loss are provided. Such optical systems generally accommodate an optical element that has an intrinsic polarization-dependent loss and which is disposed to be encountered twice by the light being routed. In some instances, the optical element may be a dispersive element such as a diffraction grating or prism, but the invention has more general applicability. The optical system additionally includes both a reflective element and a wave plate assembly disposed to be encountered by the light between encounters with the dispersive element.
    Type: Application
    Filed: June 12, 2002
    Publication date: December 26, 2002
    Applicant: Network Photonics, Inc.
    Inventors: Paulo E.X. Silveira, Tony Sarto, Larry Fabiny, Marko Voitel
  • Diffraction grating with reduced polarization-dependent loss
    Patent number: 6449096
    Abstract: A diffraction grating that achieves high diffraction efficiency at all polarizations for optical signals at telecommunications wavelengths is provided. The diffraction grating has a substrate and a plurality of reflective faces oriented at respective blaze angles &thgr;b spaced along the substrate surface, with the blaze angles substantially differ from the Littrow condition. Each reflective surface is supported by a support wall connected substantially with the substrate surface.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: September 10, 2002
    Assignee: Network Photonics, Inc.
    Inventors: Larry Fabiny, Tony Sarto