Patents by Inventor Nelu RADU

Nelu RADU 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).

  • Offset nulling for optical power meters
    Patent number: 11519782
    Abstract: There is provided an optical power measurement method, an offset calibration method and an optical power meter that is adapted to apply the offset calibration method. The optical power measurement method, the offset calibration method and the optical power meter are characterized in that two temperature sensors are used for more accurate predictions of the optical power offset. A first temperature sensor is positioned to read a temperature of the photodiode and a second temperature sensor is positioned to read a temperature of the PCB ground plane.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: December 6, 2022
    Assignee: EXFO Inc.
    Inventor: Nelu Radu
  • OFFSET NULLING FOR OPTICAL POWER METERS
    Publication number: 20210072077
    Abstract: There is provided an optical power measurement method, an offset calibration method and an optical power meter that is adapted to apply the offset calibration method. The optical power measurement method, the offset calibration method and the optical power meter are characterized in that two temperature sensors are used for more accurate predictions of the optical power offset. A first temperature sensor is positioned to read a temperature of the photodiode and a second temperature sensor is positioned to read a temperature of the PCB ground plane.
    Type: Application
    Filed: August 26, 2020
    Publication date: March 11, 2021
    Applicant: EXFO Inc.
    Inventor: Nelu RADU