Patents by Inventor Christopher Kerr

Christopher Kerr 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).

  • Coherent optical detector and coherent communication system and method
    Patent number: 7397979
    Abstract: An optical device is provided with first and second inputs. A first coupler coupled is coupled to the first input and produces at least a first and second output. A second coupler is coupled to the second input and produces at least a first and second output. A third coupler is coupled to the first output of the first coupler and to the first output of the second coupler. A fourth coupler is coupled to the second output of the first coupler and to the second output of the second coupler. First and second crossing waveguides are provided with an angle selected to minimize crosstalk and losses between the first and second cross waveguides. The first crossing waveguide connects one of the first or second outputs from the first coupler with an input of the fourth coupler. The second crossing waveguide connects one of the first or second outputs from the second coupler with an input of the third coupler. A first phase shifter is coupled to the first and second waveguides.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: July 8, 2008
    Assignee: CeLight, Inc.
    Inventors: Isaac Shpantzer, Arkady Kaplan, Aviv Salamon, Yaakov Achiam, Jacob B. Khurgin, Michael Tseytlin, Pak Shing Cho, Arthur Greenblatt, Christopher Kerr, Geoffrey Harston
  • Coherent optical detector and coherent communication system and method
    Patent number: 7327913
    Abstract: An optical device is provided with first and second inputs. A first coupler coupled is coupled to the first input and produces at least a first and second output. A second coupler is coupled to the second input and produces at least a first and second output. A third coupler is coupled to the first output of the first coupler and to the first output of the second coupler. A fourth coupler is coupled to the second output of the first coupler and to the second output of the second coupler. First and second crossing waveguides are provided with an angle selected to minimize crosstalk and losses between the first and second cross waveguides. The first crossing waveguide connects one of the first or second outputs from the first coupler with an input of the fourth coupler. The second crossing waveguide connects one of the first or second outputs from the second coupler with an input of the third coupler. A first phase shifter is coupled to the first and second waveguides.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: February 5, 2008
    Assignee: Celight, Inc.
    Inventors: Isaac Shpantzer, Arkady Kaplan, Aviv Salamon, Yaakov Achiam, Jacob B. Khurgin, Michael Tseytlin, Pak Shing Cho, Arthur Greenblatt, Christopher Kerr, Geoffrey Harston
  • Coherent optical detector and coherent communication system and method
    Publication number: 20070110362
    Abstract: An optical device is provided with first and second inputs. A first coupler coupled is coupled to the first input and produces at least a first and second output. A second coupler is coupled to the second input and produces at least a first and second output. A third coupler is coupled to the first output of the first coupler and to the first output of the second coupler. A fourth coupler is coupled to the second output of the first coupler and to the second output of the second coupler. First and second crossing waveguides are provided with an angle selected to minimize crosstalk and losses between the first and second cross waveguides. The first crossing waveguide connects one of the first or second outputs from the first coupler with an input of the fourth coupler. The second crossing waveguide connects one of the first or second outputs from the second coupler with an input of the third coupler. A first phase shifter is coupled to the first and second waveguides.
    Type: Application
    Filed: December 14, 2006
    Publication date: May 17, 2007
    Inventors: Isaac Shpantzer, Arkady Kaplan, Aviv Salamon, Yaakov Achiam, Jacob Khurgin, Michael Tseytin, Pak Cho, Arthur Greenblatt, Christopher Kerr, Geothrey Harston
  • Coherent optical detector and coherent communication system and method
    Publication number: 20040096143
    Abstract: An optical device is provided with first and second inputs. A first coupler coupled is coupled to the first input and produces at least a first and second output. A second coupler is coupled to the second input and produces at least a first and second output. A third coupler is coupled to the first output of the first coupler and to the first output of the second coupler. A fourth coupler is coupled to the second output of the first coupler and to the second output of the second coupler. First and second crossing waveguides are provided with an angle selected to minimize crosstalk and losses between the first and second cross waveguides. The first crossing waveguide connects one of the first or second outputs from the first coupler with an input of the fourth coupler. The second crossing waveguide connects one of the first or second outputs from the second coupler with an input of the third coupler. A first phase shifter is coupled to the first and second waveguides.
    Type: Application
    Filed: September 22, 2003
    Publication date: May 20, 2004
    Applicant: CeLight, Inc.
    Inventors: Isaac Shpantzer, Arkady Kaplan, Aviv Salamon, Yaakov Achiam, Jacob B. Khurgin, Michael Tseytlin, Pak Shing Cho, Arthur Greenblatt, Christopher Kerr, Geoffrey Harston