Patents by Inventor Peter Collin Hill

Peter Collin Hill 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).

  • Reflective non-reciprocal optical device
    Patent number: 6415077
    Abstract: A non-reciprocal optical device mapping a series of optical input/output signal waveguides to a corresponding series of optical input/output signal waveguides, the device comprising: a series of spaced apart input/output waveguides; a reflective imaging system for reflecting and focussing light emitted from the input/output waveguides; a plurality of crystal elements between the input/output waveguides and the reflective imaging means; at least one non-reciprocal polarization rotation element; wherein light emitted from a first input/output waveguide is transmitted to a second input/output waveguide in a polarization independent manner and light emitted from the second input/output waveguide is transmitted away from the first input/output waveguide.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: July 2, 2002
    Assignee: Nortel Networks (Photonics) Pty. Ltd.
    Inventors: Steven James Frisken, John William Arkwright, Peter Collin Hill
  • Reflective non-reciprocal optical device
    Patent number: 6263131
    Abstract: A non-reciprocal optical device mapping a series of optical input/output signal waveguides to a corresponding series of optical input/output signal waveguides, the device comprising: a series of spaced apart input/output waveguides; a reflective imaging system for reflecting and focussing light emitted from the input/output waveguides; a plurality of crystal elements between the input/output waveguides and the reflective imaging means; at least one non-reciprocal polarization rotation element; wherein light emitted from a first input/output waveguide is transmitted to a second input/output waveguide in a polarization independent manner and light emitted from the second input/output waveguide is transmitted away from the first input/output waveguide.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: July 17, 2001
    Assignee: Nortel Networks (Photonics) Pty LTD.
    Inventors: Steven James Frisken, John William Arkwright, Peter Collin Hill