Patents by Inventor Dylan F. Logan

Dylan F. Logan 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 modulators employing charge state control of deep levels
    Patent number: 8369658
    Abstract: A method involving: providing an optical waveguide made of a semiconductor material and having a region that is doped by a deep level impurity which creates deep level states in a bandgap in the semiconductor material, the deep level states characterized by an occupancy; passing an optical signal through the optical waveguide and between the region doped by the deep level impurity; and modulating the occupancy of the deep level states to thereby modulate the optical signal.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: February 5, 2013
    Inventors: Andrew P. Knights, Gregory L. Wojcik, Andreas Goebel, Dylan F. Logan, Paul E. Jessop
  • OPTICAL MODULATORS EMPLOYING CHARGE STATE CONTROL OF DEEP LEVELS
    Publication number: 20110091146
    Abstract: A method involving: providing an optical waveguide made of a semiconductor material and having a region that is doped by a deep level impurity which creates deep level states in a bandgap in the semiconductor material, the deep level states characterized by an occupancy; passing an optical signal through the optical waveguide and between the region doped by the deep level impurity; and modulating the occupancy of the deep level states to thereby modulate the optical signal.
    Type: Application
    Filed: July 20, 2010
    Publication date: April 21, 2011
    Inventors: Andrew P. Knights, Gregory L. Wojcik, Andreas Goebel, Dylan F. Logan, Paul E. Jessop