Patents by Inventor Zhuli HE

Zhuli HE 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).

  • Patent number: 11906876
    Abstract: The disclosure provides a straight waveguide phase change all-photonic Boolean logic device and a full binary logic implementation method thereof, including a ridge- shape straight waveguide structure, two phase change functional units near the two ends and a Bragg grating between two phase change functional units. The phase change functional units and Bragg grating are situated on the ridge of the waveguide. The write and read optic pulses have different wavelengths. The Bragg grating are designed to reflect the write optical pulse and transmit the read pulse, so that write pulses input from the two ends only act on the phase change functional unit closest to that end, and read pulse can go through the whole device from input end to output end. In terms of the logic implementation method, with three-step write operation, 16 full Boolean logic functions can be implemented in this device.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: February 20, 2024
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Xiaomin Cheng, Zhuli He, Yunlai Zhu, Han Li, Xiangshui Miao
  • Publication number: 20230221619
    Abstract: The disclosure provides a straight waveguide phase change all-photonic Boolean logic device and a full binary logic implementation method thereof, including a straight waveguide structure, a phase change functional unit covered on top of a waveguide and a protective layer thereof, and a waveguide Bragg grating structure. In terms of the logic implementation method, optical pulses are respectively input from two ends of the device to modulate the state of the phase change functional unit. The parameters of the waveguide Bragg grating structure are set to reflect the wavelength of the pump optical pulse, so that write pulses input from the two ends only act on the phase change functional unit closest to that end. A probe optical pulse with a specific wavelength is selected, and the probe light under the wavelength is less reflected by the waveguide Bragg grating and does not affect the reading of the state of the device.
    Type: Application
    Filed: July 22, 2021
    Publication date: July 13, 2023
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Xiaomin CHENG, Zhuli HE, Yunlai ZHU, Han LI, Xiangshui MIAO