Patents by Inventor Francesco Birritta

Francesco Birritta 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).

  • Alignment and imaging system for writing Bragg gratings
    Patent number: 6947640
    Abstract: A method is provided for precise and repeatable location of one or more Bragg gratings in a large diameter optical waveguide having a cross-section of at least about 0.3 millimeters, featuring the steps of: defining a reference location on a fixed placement datum arranged on a waveguide fixture device; defining one or more desired locations on a large diameter optical waveguide arranged on the waveguide fixture location in relation to the reference location; and writing one or more Bragg gratings in the large diameter optical waveguide at the one or more desired locations based on the reference location on the fixed placement datum. The step of defining the reference location may include marking the fixed placement datum with a scribe mark thereon; and securing the fixed placement datum in a groove in a waveguide fixture device.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: September 20, 2005
    Assignee: Cidra Corporation
    Inventors: Jerin J. Russell, John R. Troll, Joseph F. Pinto, Freddie Falero, Jr., Minfu Lu, Trevor W. MacDougall, Francesco Birritta, Duane J. Rodriguez
  • Alignment and imaging system for writing bragg gratings
    Publication number: 20040105623
    Abstract: A method is provided for precise and repeatable location of one or more Bragg gratings in a large diameter optical waveguide having a cross-section of at least about 0.3 millimeters, featuring the steps of: defining a reference location on a fixed placement datum arranged on a waveguide fixture device; defining one or more desired locations on a large diameter optical waveguide arranged on the waveguide fixture location in relation to the reference location; and writing one or more Bragg gratings in the large diameter optical waveguide at the one or more desired locations based on the reference location on the fixed placement datum. The step of defining the reference location may include marking the fixed placement datum with a scribe mark thereon; and securing the fixed placement datum in a groove in a waveguide fixture device.
    Type: Application
    Filed: June 10, 2003
    Publication date: June 3, 2004
    Applicant: CiDRA Corporation
    Inventors: Jerin J. Russell, John R. Troll, Joseph F. Pinto, Freddie Falero, Minfu Lu, Trevor W. MacDougall, Francesco Birritta, Duane J. Rodriguez