Patents by Inventor Younsheng Liu

Younsheng Liu 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).

  • Fiber lens assembly for optical device
    Patent number: 8094982
    Abstract: A fiber lens assembly is configured to optically couple an optical fiber to a signal processing device having free-space optical elements. The fiber lens assembly includes a diverging lens having a focal length that may be around 2 to 6 times the diameter of the optical fiber core. Sensitivity of the fiber lens assembly to angular misalignment and positional displacement is reduced by coupling the optical fiber to the signal processing device using a diverging lens rather than a collimating lens, and by configuring the diverging lens with a suitable focal length.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: January 10, 2012
    Assignee: Oclaro (North America), Inc.
    Inventors: Xuehua Wu, Haijun Yuan, Younsheng Liu, Christopher Lin, Giovanni Barbarossa
  • FIBER LENS ASSEMBLY FOR OPTICAL DEVICE
    Publication number: 20080219619
    Abstract: A fiber lens assembly is configured to optically couple an optical fiber to a signal processing device having free-space optical elements. The fiber lens assembly includes a diverging lens having a focal length that may be around 2 to 6 times the diameter of the optical fiber core. Sensitivity of the fiber lens assembly to angular misalignment and positional displacement is reduced by coupling the optical fiber to the signal processing device using a diverging lens rather than a collimating lens, and by configuring the diverging lens with a suitable focal length.
    Type: Application
    Filed: January 15, 2008
    Publication date: September 11, 2008
    Inventors: Xuehua Wu, Haijun Yuan, Younsheng Liu, Christopher Lin, Giovanni Barbarossa