Patents by Inventor Jinde Yin

Jinde Yin 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: 11239627
    Abstract: The present disclosure provides a waveguide integrated optical modulator, which is made of a bismuth film, an antimony film, or a tellurium film. A thickness of the bismuth film, the antimony film, or the tellurium film is between 10 nm and 200 nm, and the bismuth film, the antimony film, or the tellurium film is produced by physical vapor deposition method. The waveguide integrated optical modulator can directly add the symmetrical electrode on the surface of the bismuth film, the antimony film, or the tellurium film, and apply an external bias voltage of different amplitudes to the bismuth film, the antimony film, or the tellurium film by adjusting the power source. Thus, the waveguide integrated optical modulator can actively control the nonlinear optical characteristics of the saturable absorber by changing the magnitude of the external voltage, and further actively modulate the laser characteristics of the pulse.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: February 1, 2022
    Assignee: SHENZHEN UNIVERSITY
    Inventors: Peiguang Yan, Hao Chen, Jinde Yin, Fengfei Xing
  • Patent number: 9074957
    Abstract: The present invention relates to a high stable fiber fabry-perot pressure sensor with glue-free packing and its fabrication method. The sensor includes a sensor head, a sensor body with a through-hole in the axial direction and a optical fiber. The sensor head is a 4-layer structure, which includes the first silicon wafer, the first Pyrex glass wafer, the second silicon wafer and the second Pyrex glass wafer. The rear surface of the first silicon wafer forms the first reflecting surface of the fabry-perot (F-P) cavity, and the second silicon wafer provides the second reflecting surface for the F-P cavity. The second Pyrex glass wafer is welded together with the sensor body. The optical fiber is fixed in the sensor body by a CO2 laser welding to achieve the glue-free packing. When the external pressure is applied to deform the first layer silicon wafer, the F-P cavity length will change.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: July 7, 2015
    Assignee: Tianjin University
    Inventors: Junfeng Jiang, Tiegen Liu, Jinde Yin, Kun Liu, Yu Liu
  • Patent number: 8958075
    Abstract: Swing-style demodulation device for measuring displacement information, including (1) a broadband light source, (2) an optical circulator, (3) GRIN lens, (4) a fixed mirror on an object under test, (5) a collimating device, (6) a rotating mirror, (7) f-? lens, (8) a polarizer, (9) a narrow strip shaped birefringent wedge, (10) a polarization analyzer, and (11) a signal acquisition system.
    Type: Grant
    Filed: May 28, 2012
    Date of Patent: February 17, 2015
    Assignee: Tianjin University
    Inventors: Tiegen Liu, Junfeng Jiang, Jinde Yin, Kun Liu, Shaohua Wang
  • Publication number: 20140208858
    Abstract: The present invention relates to a high stable fiber fabry-perot pressure sensor with glue-free packing and its fabrication method. The sensor includes a sensor head, a sensor body with a through-hole in the axial direction and a optical fiber. The sensor head is a 4-layer structure, which includes the first silicon wafer, the first Pyrex glass wafer, the second silicon wafer and the second Pyrex glass wafer. The rear surface of the first silicon wafer forms the first reflecting surface of the fabry-perot (F-P) cavity, and the second silicon wafer provides the second reflecting surface for the F-P cavity. The second Pyrex glass wafer is welded together with the sensor body. The optical fiber is fixed in the sensor body by a CO2 laser welding to achieve the glue-free packing When the external pressure is applied to deform the first layer silicon wafer, the F-P cavity length will change.
    Type: Application
    Filed: May 28, 2012
    Publication date: July 31, 2014
    Inventors: Junfeng Jiang, Tiegen Liu, Jinde Yin, Kun Liu, Yu Liu
  • Publication number: 20140176959
    Abstract: This invention provides a swing-style and high signal-to-noise ratio low coherence interference demodulation devices and the corresponding demodulation method for the measurement of displacement. In the displacement sensing method, the optical path difference, which is built by the light reflections from the reference surface and the test object, varies with the displacement of the test object. When the reflected signal lights is sent to a low coherence polarization interference system, the birefringent wedge formulates a spatial distribution of optical path difference, from which the optical path difference of the reflection signals thus can be demodulated. In the displacement scanning method, the reflected signal lights are collimated and transferred to a time scanner consisting of a rotating mirror and a f-? lens, to perform thin light beam scanning along the longitudinal direction of a birefringent wedge.
    Type: Application
    Filed: May 28, 2012
    Publication date: June 26, 2014
    Inventors: Tiegen Liu, Junfeng Jiang, Jinde Yin, Kun Liu, Shaohua Wang