Patents by Inventor Yongqi HE

Yongqi 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).

  • Optical fiber filter and optical fiber amplifier
    Patent number: 11747565
    Abstract: An optical fiber filter includes a fiber core, inner cladding, and outer cladding. A refractive index of the fiber core, a refractive index of the inner cladding, and a refractive index of the outer cladding progressively decrease in sequence. The fiber core is configured to transmit at least two mutually different first optical signal modes, the inner cladding is configured to transmit at least two mutually different second optical signal modes, and at least one fiber grating is etched on the fiber core. At least part of optical power of a target first optical signal mode is coupled to only a target second optical signal mode at the fiber grating. The target first optical signal mode is one of the at least two first optical signal modes, and the target second optical signal mode is one of the at least two second optical signal modes.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: September 5, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Juhao Li, Jinglong Zhu, Yongqi He, Shengling Wu, Qiang Guo, Ruishan Chen, Rui Zhou
  • OPTICAL FIBER FILTER AND OPTICAL FIBER AMPLIFIER
    Publication number: 20220357515
    Abstract: An optical fiber filter includes a fiber core, inner cladding, and outer cladding. A refractive index of the fiber core, a refractive index of the inner cladding, and a refractive index of the outer cladding progressively decrease in sequence. The fiber core is configured to transmit at least two mutually different first optical signal modes, the inner cladding is configured to transmit at least two mutually different second optical signal modes, and at least one fiber grating is etched on the fiber core. At least part of optical power of a target first optical signal mode is coupled to only a target second optical signal mode at the fiber grating. The target first optical signal mode is one of the at least two first optical signal modes, and the target second optical signal mode is one of the at least two second optical signal modes.
    Type: Application
    Filed: July 12, 2022
    Publication date: November 10, 2022
    Inventors: Juhao LI, Jinglong ZHU, Yongqi HE, Shengling WU, Qiang GUO, Ruishan CHEN, Rui ZHOU