Patents by Inventor Yujian Bao

Yujian Bao 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: 20200319402
    Abstract: An optical receiver may include a planar lightwave circuit with an optical path and a tapered reflection surface to direct an optical beam toward a top surface of the planar lightwave circuit. The optical receiver may include a photodiode disposed onto the top surface of the planar lightwave circuit such that a receive portion of the photodiode is aligned to the optical path, wherein a gap between the photodiode and the planar lightwave circuit is less than 5 microns.
    Type: Application
    Filed: June 27, 2019
    Publication date: October 8, 2020
    Inventors: Yujian BAO, Zhaoming LI
  • Patent number: 10795080
    Abstract: An optical receiver may include a planar lightwave circuit with an optical path and a tapered reflection surface to direct an optical beam toward a top surface of the planar lightwave circuit. The optical receiver may include a photodiode disposed onto the top surface of the planar lightwave circuit such that a receive portion of the photodiode is aligned to the optical path, wherein a gap between the photodiode and the planar lightwave circuit is less than 5 microns.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: October 6, 2020
    Assignee: Lumentum Operations LLC
    Inventors: Yujian Bao, Zhaoming Li
  • Publication number: 20200057196
    Abstract: An optical device includes a waveguide device and a fiber stub. The fiber stub at least partially contains a first optical fiber and is directly attached to the waveguide device by an adhesive. The first optical fiber is to be coupled to a second optical fiber included in an optical connector when the optical connector is inserted into a receptacle of the optical device. The fiber stub is to couple the first optical fiber to at least one of the waveguide device or an optical waveguide included in the waveguide device.
    Type: Application
    Filed: June 28, 2019
    Publication date: February 20, 2020
    Inventors: Barthelemy FONDEUR, Yujian BAO, Zhaoming LI, Wei LI
  • Patent number: 8664584
    Abstract: A compact PD unidirectivity solution for an optical tap monitor, which reduces the overall size of optical tap module, is provided. The solution is to use lensing to separate the light from the input and output fibers, and then add a mask or spacer in front of the monitor PD to prevent any of the light from the output fiber from entering the photodetector package.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: March 4, 2014
    Assignee: JDS Uniphase Corporation
    Inventors: Yatao Yang, Chang Xiao, Yujian Bao, Fenhong Zhou
  • Publication number: 20110089314
    Abstract: A compact PD unidirectivity solution for an optical tap monitor, which reduces the overall size of optical tap module, is provided. The solution is to use lensing to separate the light from the input and output fibres, and then add a mask or spacer in front of the monitor PD to prevent any of the light from the output fiber from entering the photodetector package.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicants: JDS Uniphase Corporation
    Inventors: Yatao YANG, Chang Xiao, Yujian Bao, Fenhong Zhou