Patents by Inventor Yong Jin Xie

Yong Jin Xie 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).

  • Mode size converter for a planar waveguide
    Patent number: 8045832
    Abstract: A process for forming a mode size converter with an out-of-plane taper formed during deposition with a shadow mask is disclosed. Mode-size converters according to the present invention can have any number of configurations. Measured coupling efficiencies for waveguides with mode size converters according to the present invention show marked improvement.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: October 25, 2011
    Assignee: SpringWorks, LLC
    Inventors: Tao Pan, Richard E. Demaray, Yu Chen, Yong Jin Xie, Rajiv Pethe
  • Mode size converter for a planar waveguide
    Patent number: 6884327
    Abstract: A process for forming a mode size converter with an out-of-plane taper formed during deposition with a shadow mask is disclosed. Mode-size converters according to the present invention can have any number of configurations. Measured coupling efficiencies for waveguides with mode size converters according to the present invention show marked improvement.
    Type: Grant
    Filed: March 16, 2002
    Date of Patent: April 26, 2005
    Inventors: Tao Pan, Richard E. Demaray, Yu Chen, Yong Jin Xie, Rajiv Pethe
  • Mode size converter for a planar waveguide
    Publication number: 20030173208
    Abstract: A process for forming a mode size converter with an out-of-plane taper formed during deposition with a shadow mask is disclosed. Mode-size converters according to the present invention can have any number of configurations. Measured coupling efficiencies for waveguides with mode size converters according to the present invention show marked improvement.
    Type: Application
    Filed: March 16, 2002
    Publication date: September 18, 2003
    Inventors: Tao Pan, Richard E. Demaray, Yu Chen, Yong Jin Xie, Rajiv Pethe
  • Gain flattened optical amplifier
    Publication number: 20030174391
    Abstract: A wave guide amplifier is presented which has a relatively flat gain over a band of wavelengths. In some embodiments, the amplifier is an erbium doped amplifier and the gain is flat to within 2.5 dB across the C-band. Gain flattening can be accomplished by adjusting the concentration of ground state rare earth ions so that a portion of the signal light is absorbed throughout the amplifier. Signal light at wavelengths corresponding to peaks in the emission spectrum tend to be absorbed more readily than other wavelengths, thereby flattening the gain characteristic of the amplifier.
    Type: Application
    Filed: March 16, 2002
    Publication date: September 18, 2003
    Inventors: Tao Pan, Richard E. Demaray, Yong Jin Xie