Patents by Inventor Linjie LV

Linjie LV 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).

  • Publication number: 20230184945
    Abstract: Disclosed is a photonic doppler velocimetry (PDV) system for ultra-high-speed instantaneous measurement, relating to laser velocity interferometry. The PDV system includes a laser velocity interferometry module, a microwave photonic module, and a data acquisition and signal processing module. The laser velocity interferometry module includes a continuous-wave laser, a circulator, a fiber optic probe, and a first photodetector. The microwave photonic module includes a femtosecond-pulse laser, a first dispersion optical fiber, a second dispersion optical fiber, a Mach-Zehnder (M-Z) modulator, and an optical fiber amplifier. The data acquisition and signal processing module includes a second photodetector, an oscilloscope, and a computer.
    Type: Application
    Filed: November 14, 2022
    Publication date: June 15, 2023
    Inventors: Tengfei WU, Linjie LV, Jibo HAN, Chuanqing XIA
  • Publication number: 20230074319
    Abstract: A large-scale and high-precision absolute distance measurement system based on an all-fiber femtosecond laser, including: a first all-fiber femtosecond laser, a second all-fiber femtosecond laser, a fiber optic splitter, a first fiber optic circulator, a wavelength division multiplexer, an achromatic fiber collimator, a first fiber optic combiner, a second fiber optic combiner, a second fiber optic circulator, a semiconductor laser, a first photodetector, a second photodetector, and a data acquisition and processing module.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 9, 2023
    Inventors: Tengfei WU, Jibo HAN, Yu BAI, Lei ZHANG, Linjie LV, Xinliang LI