Patents by Inventor Jiangfang DING

Jiangfang DING 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).

  • Method for calibrating controllable phase shifters in multi-stage staggered Mach-Zehnder interferometer on optical chip
    Patent number: 11892742
    Abstract: The present invention discloses a method for calibrating controllable phase shifters in a multi-stage staggered Mach-Zehnder interferometer structure on an optical chip, aiming to solve the problem of calibrating the controllable phase shifters in a configurable optical network of the multi-stage staggered Mach-Zehnder interferometers. The technical solution is to calibrate the controllable phase shifters that can be calibrated in the optical network; and then to constitute calibration conditions for and calibrate inner phase shifters that has not been; and finally to constitute calibration conditions for and calibrate outer phase shifters that is not calibrated.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: February 6, 2024
    Assignee: NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY
    Inventors: Junjie Wu, Yang Wang, Xiaogang Qiang, Ping Xu, Jiangfang Ding, Mingtang Deng, Anqi Huang, Xiang Fu
  • METHOD FOR CALIBRATING CONTROLLABLE PHASE SHIFTERS IN MULTI-STAGE STAGGERED MACH-ZEHNDER INTERFEROMETER ON OPTICAL CHIP
    Publication number: 20210072613
    Abstract: The present invention discloses a method for calibrating controllable phase shifters in a multi-stage staggered Mach-Zehnder interferometer structure on an optical chip, aiming to solve the problem of calibrating the controllable phase shifters in a configurable optical network of the multi-stage staggered Mach-Zehnder interferometers. The technical solution is to calibrate the controllable phase shifters that can be calibrated in the optical network; and then to constitute calibration conditions for and calibrate inner phase shifters that has not been; and finally to constitute calibration conditions for and calibrate outer phase shifters that is not calibrated.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 11, 2021
    Applicant: NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY
    Inventors: Junjie WU, Yang WANG, Xiaogang QIANG, Ping XU, Jiangfang DING, Mingtang DENG, Anqi HUANG, Xiang FU