Patents by Inventor Dong Gui Gui

Dong Gui Gui 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).

  • WDM Mux/DeMux employing filters shaped for maximum use thereof
    Patent number: 9219549
    Abstract: Filters shaped differently from those commonly used in WDM Mux/DeMux optical devices are described. Different from the prior art devices that commonly use filters shaped in cuboid, the filters in the embodiment of the present invention are shaped in parallelepiped. In other words, a cross section of such filter is not in parallelogram. According to one embodiment of the present invention, a filter is so cut that a cross section thereof presents a cutting angle not being 90 degrees. As a result, the filter is fully used in WDM Mux/DeMux optical devices. Such filters are advantageously used in compact optical modules.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: December 22, 2015
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Dong Gui Gui, Yao Li, Qijun Xiao
  • WDM Mux/DeMux employing filters shaped for maximum use thereof
    Publication number: 20150125163
    Abstract: Filters shaped differently from those commonly used in WDM Mux/DeMux optical devices are described. Different from the prior art devices that commonly use filters shaped in cuboid, the filters in the embodiment of the present invention are shaped in parallelepiped. In other words, a cross section of such filter is not in parallelogram. According to one embodiment of the present invention, a filter is so cut that a cross section thereof presents a cutting angle not being 90 degrees. As a result, the filter is fully used in WDM Mux/DeMux optical devices. Such filters are advantageously used in compact optical modules.
    Type: Application
    Filed: August 4, 2014
    Publication date: May 7, 2015
    Inventors: Dong Gui Gui, Yao Li, Qijun Xiao