Patents by Inventor Zundu Luo

Zundu Luo 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).

  • Erbium-doped silicate crystals and 1.5 ?m lasers using the same
    Patent number: 11616336
    Abstract: A class of erbium-doped silicate crystals have a general chemical formula of (ErxYbyCezA(1-x-y-z))3RM3Si2O14, in which the range of x is 0.002 to 0.02, y is 0.005 to 0.1, and z is 0 to 0.15; A is one, two or three elements selected from Ca, Sr, or Ba; R is one or two elements selected from Nb or Ta; M is one or two elements selected from Al or Ga. Using one of such crystals as a gain medium and a diode laser at 940 nm or 980 nm as a pumping source, a 1.5 ?m continuous-wave solid-state laser with high output power and high efficiency, as well as a pulse solid-state laser with high energy and narrow width can be obtained.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: March 28, 2023
    Assignee: FUJIAN INSTITUTE OF RESEARCH ON THE STRUCTURE OF MATTER, CHINESE ACADEMY OF SCIENCES
    Inventors: Yidong Huang, Yujin Chen, Guoliang Gong, Jianhua Huang, Yanfu Lin, Xinghong Gong, Zundu Luo
  • ERBIUM-DOPED SILICATE CRYSTALS AND 1.5 µm LASERS USING THE SAME
    Publication number: 20200280163
    Abstract: A class of erbium-doped silicate crystals have a general chemical formula of (ErxYbyCezA(1-x-y-z))3RM3Si2O14, in which the range of x is 0.002 to 0.02, y is 0.005 to 0.1, and z is 0 to 0.15; A is one, two or three elements selected from Ca, Sr, or Ba; R is one or two elements selected from Nb or Ta; M is one or two elements selected from Al or Ga. Using one of such crystals as a gain medium and a diode laser at 940 nm or 980 nm as a pumping source, a 1.5 ?m continuous-wave solid-state laser with high output power and high efficiency, as well as a pulse solid-state laser with high energy and narrow width can be obtained.
    Type: Application
    Filed: August 21, 2018
    Publication date: September 3, 2020
    Inventors: Yidong HUANG, Yujin CHEN, Guoliang GONG, Jianhua HUANG, Yanfu LIN, Xinghong GONG, Zundu LUO
  • Self-frequency-doubling minilaser device with NYAB crystal as laser materials
    Patent number: 5058118
    Abstract: A minilaser device exhibiting both laser and non-linear optical effects. The device includes a single laser crystal bar of NYAB which inhibits non-linear characteristics and serves as a self-frequency-doubling crystal having the laser and non-linear optical effects, and a pumping source for the device to generate laser light.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: October 15, 1991
    Assignee: Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science
    Inventors: Minwang Qui, Yichuan Huang, Aidong Jiang, Zundu Luo