Patents by Inventor John D. Joanopoulos

John D. Joanopoulos 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).

  • Zero group-velocity modes in chalcogenide holey photonic crystal fibers
    Patent number: 9052434
    Abstract: A fiber structure for propagating one or more zero group-velocity modes is provided. The fiber structure includes a cladding arrangement comprising a photonic crystal having a complete bandgap at a specified index. A core is formed in a selective region of the cladding arrangement. The core allows the propagation of the one or more group-velocity modes.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: June 9, 2015
    Assignee: Massachusetts Institute of Technology
    Inventors: Ardavan Farjadpour, John D. Joanopoulos, Steven G. Johnson
  • ZERO GROUP-VELOCITY MODES IN CHALCOGENIDE HOLEY PHOTONIC CRYSTAL FIBERS
    Publication number: 20100221537
    Abstract: A fiber structure for propagating one or more zero group-velocity modes is provided. The fiber structure includes a cladding arrangement comprising a photonic crystal having a complete bandgap at a specified index. A core is formed in a selective region of the cladding arrangement. The core allows the propagation of the one or more group-velocity modes.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 2, 2010
    Inventors: Ardavan Farjadpour, John D. Joanopoulos, Steven G. Johnson