Patents by Inventor Hongming Cai

Hongming Cai 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).

  • Single-ended output circulator
    Patent number: 11698493
    Abstract: A single-ended output circulator includes a three-core optical fiber head having first, second, and third optical fiber cores; a walk-off crystal having a first surface facing towards the second end of the three-core optical fiber head tube and a second surface facing away from the second end of the three-core optical fiber head tube; a plurality of half-wave plates each having a first surface coupled to the second surface of the walk-off crystal and a second surface facing away from the second surface of the walk-off crystal; a collimating lens having a first end and a second end; a reflection mirror configured to reflect light beams from the collimating lens; an optical prism between the collimating lens and the reflection mirror and configured to transmit a light beam along a propagation direction according to a polarization direction of the light beam; and a polarization rotator.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: July 11, 2023
    Assignee: II-VI DELAWARE, INC.
    Inventors: Li Wu, Yunbing Xu, Weimin Chen, Yuping Wu, Danping Wei, Peng Xiao, Yang Li, Hongming Cai
  • SINGLE-ENDED OUTPUT CIRCULATOR
    Publication number: 20210294037
    Abstract: A single-ended output circulator includes a three-core optical fiber head having first, second, and third optical fiber cores; a walk-off crystal having a first surface facing towards the second end of the three-core optical fiber head tube and a second surface facing away from the second end of the three-core optical fiber head tube; a plurality of half-wave plates each having a first surface coupled to the second surface of the walk-off crystal and a second surface facing away from the second surface of the walk-off crystal; a collimating lens having a first end and a second end; a reflection mirror configured to reflect light beams from the collimating lens; an optical prism between the collimating lens and the reflection mirror and configured to transmit a light beam along a propagation direction according to a polarization direction of the light beam; and a polarization rotator.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 23, 2021
    Inventors: Li WU, Yunbing Xu, Weimin Chen, Yuping Wu, Danping Wei, Peng Xiao, Yang Li, Hongming Cai