Patents by Inventor Vittorio Passaro

Vittorio Passaro 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).

  • Optical coupler
    Patent number: 7221825
    Abstract: An optical coupler comprises an input waveguide, an intermediate waveguide, an output waveguide, a first grating situated between the input and intermediate waveguides, and a second grating situated between the intermediate and output waveguides such that, in use, light propagating in the input waveguide is coupled into the intermediate waveguide with the assistance of the first grating, and thence is coupled into the output waveguide with the assistance of the second grating. The coupler is a directional coupler, in particular a dual grating-assisted directional coupler, and may be used to couple light between an optical fibre and an integrated semiconductor device, or between dissimilar waveguides.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: May 22, 2007
    Assignee: The University of Surrey
    Inventors: Graham Reed, Goran Masanovic, Vittorio Passaro
  • Dual grating assisted optical coupler
    Publication number: 20060120667
    Abstract: An optical coupler comprises an input waveguide, an intermediate waveguide, an output waveguide, a first grating situated between the input and intermediate waveguides, and a second grating situated between the intermediate and output waveguides such that, in use, light propagating in the input waveguide is coupled into the intermediate waveguide with the assistance of the first grating, and thence is coupled into the output waveguide with the assistance of the second grating. The coupler is a directional coupler, in particular a dual grating-assisted directional coupler, and may be used to couple light between an optical fibre and an integrated semiconductor device, or between dissimilar waveguides.
    Type: Application
    Filed: December 23, 2003
    Publication date: June 8, 2006
    Applicant: THE UNIVERSITY OF SURREY
    Inventors: Graham Reed, Goran Masanovic, Vittorio Passaro