Patents by Inventor Honghwi PARK

Honghwi PARK 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).

  • Circular resonator, and optical modulator and optical element comprising same
    Patent number: 11966103
    Abstract: A circular resonator, and an optical modulator and an optical element comprising same. The circular resonator includes a first material, formed in a circular shape, including a plurality of nano holes and having a thermo-optic coefficient varying at a predetermined ratio according to temperature, and a second material having a thermo-optic coefficient varying in a direction opposite to the direction of change of the thermo-optic coefficient of the first material depending on temperature, the second material being filled in the plurality of nano holes, wherein an interval between the plurality of nano holes is formed at a pitch shorter than the wavelength of incident light.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: April 23, 2024
    Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hongsik Park, Chang-Ju Lee, Honghwi Park, Muhan Choi
  • CIRCULAR RESONATOR, AND OPTICAL MODULATOR AND OPTICAL ELEMENT COMPRISING SAME
    Publication number: 20210011311
    Abstract: A circular resonator, and an optical modulator and an optical element comprising same. The circular resonator includes a first material, formed in a circular shape, including a plurality of nano holes and having a thermo-optic coefficient varying at a predetermined ratio according to temperature, and a second material having a thermo-optic coefficient varying in a direction opposite to the direction of change of the thermo-optic coefficient of the first material depending on temperature, the second material being filled in the plurality of nano holes, wherein an interval between the plurality of nano holes is formed at a pitch shorter than the wavelength of incident light.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Applicant: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY- ACADEMIC COOPERATION FOUNDATION
    Inventors: Hongsik PARK, Chang-Ju LEE, Honghwi PARK, Muhan CHOI