Patents by Inventor Isaac SACKEY

Isaac SACKEY 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).

  • Polarization-diversity Kramers-Kronig heterodyne receiver and method
    Patent number: 11695482
    Abstract: An apparatus includes an input receiving a modulated optical data signal having components of at least first and second polarizations, a first optical detector receiving the data signal, the first optical detector being first polarization-selective or first polarization-sensitive, passing components of the data signal having the second polarization, and outputting a first electrical signal, a second optical detector coupled to the first optical detector to receive the components of the data signal having the second polarization, and outputting a second electrical signal, and a processor applying a Kramers-Kronig process to the first and second electrical signals, and outputting the data signal using the Kramers-Kronig processed first and second electrical signals.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: July 4, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Carsten Schmidt-Langhorst, Robert Elschner, Robert Emmerich, Isaac Sackey, Patrick Runge
  • POLARIZATION-DIVERSITY KRAMERS-KRONIG HETERODYNE RECEIVER AND METHOD
    Publication number: 20220094439
    Abstract: An apparatus includes an input receiving a modulated optical data signal having components of at least first and second polarizations, a first optical detector receiving the data signal, the first optical detector being first polarization-selective or first polarization-sensitive, passing components of the data signal having the second polarization, and outputting a first electrical signal, a second optical detector coupled to the first optical detector to receive the components of the data signal having the second polarization, and outputting a second electrical signal, and a processor applying a Kramers-Kronig process to the first and second electrical signals, and outputting the data signal using the Kramers-Kronig processed first and second electrical signals.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 24, 2022
    Inventors: Carsten SCHMIDT-LANGHORST, Robert ELSCHNER, Robert EMMERICH, Isaac SACKEY, Patrick RUNGE