Patents by Inventor Navid Hosseinzadeh

Navid Hosseinzadeh 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).

  • Analog predistortion linearization for optical fiber communication links
    Patent number: 11914263
    Abstract: A predistorter for an electro-optical converter includes a plurality of low noise RF amplifiers distributed along a transmission line that receive an RF input. Second order intermodulation injection (IM2) circuitry includes an inductively-degenerated frequency doubler to square and filter IM2 products of the RF input. A Mach-Zehnder Modulator (MZM) is used for electro-optical conversion. Feed forward circuitry injects IM2 to independently propagate RF intermodulation components with velocity matching to the MZM. At least one driver injects the RF input and RF intermodulation components into the MZM.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: February 27, 2024
    Assignee: The Regents of the University of California
    Inventors: James F. Buckwalter, Navid Hosseinzadeh, Aditya Jain, Roger Helkey
  • ANALOG PREDISTORTION LINEARIZATION FOR OPTICAL FIBER COMMUNICATION LINKS
    Publication number: 20220187675
    Abstract: A predistorter for an electro-optical converter includes a plurality of low noise RF amplifiers distributed along a transmission line that receive an RF input. Second order intermodulation injection (IM2) circuitry includes an inductively-degenerated frequency doubler to square and filter IM2 products of the RF input. A Mach-Zehnder Modulator (MZM) is used for electro-optical conversion. Feed forward circuitry injects IM2 to independently propagate RF intermodulation components with velocity matching to the MZM. At least one driver injects the RF input and RF intermodulation components into the MZM.
    Type: Application
    Filed: March 10, 2020
    Publication date: June 16, 2022
    Inventors: James F. Buckwalter, Navid Hosseinzadeh, Aditya Jain, Roger Helkey