Patents by Inventor Kevin Lundgreen

Kevin Lundgreen 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 dependent loss (PDL) compensation systems
    Patent number: 11368219
    Abstract: A polarization dependent loss (PDL) compensation device for an optical system can be configured to output a compensating PDL to at least partially cancel a PDL of the optical system. In certain embodiments, the device can include a first polarization controller configured to modify a state of polarization of an optical signal, a PDL emulator disposed upstream of the first polarization controller and configured to output the compensating PDL upstream of the first polarization controller, and a second polarization controller disposed upstream of the PDL emulator and configured to modify a state of polarization of the optical signal upstream of the PDL emulator.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: June 21, 2022
    Assignee: Raytheon Applied Signal Technology, Inc.
    Inventors: Vincent Wolff, Kevin Lundgreen
  • POLARIZATION DEPENDENT LOSS (PDL) COMPENSATION SYSTEMS
    Publication number: 20220166513
    Abstract: A polarization dependent loss (PDL) compensation device for an optical system can be configured to output a compensating PDL to at least partially cancel a PDL of the optical system. In certain embodiments, the device can include a first polarization controller configured to modify a state of polarization of an optical signal, a PDL emulator disposed upstream of the first polarization controller and configured to output the compensating PDL upstream of the first polarization controller, and a second polarization controller disposed upstream of the PDL emulator and configured to modify a state of polarization of the optical signal upstream of the PDL emulator.
    Type: Application
    Filed: November 20, 2020
    Publication date: May 26, 2022
    Applicant: Raytheon Applied Signal Technology, Inc.
    Inventors: Vincent Wolff, Kevin Lundgreen