Patents by Inventor Xiaoping Wu

Xiaoping Wu 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).

  • Integrated optical-power adjustable WDM
    Patent number: 7046874
    Abstract: An integrated optical-power adjustable WDM is provided, which has a plurality of channels, each channel having a first input port, a second output port and a third output port, the second output port of one channel being connected to the first output port of the next channel, the first port of each channel having a waveguide, the third port of each channel having a waveguide, each channel comprising a pair of collimating elements composed of a first collimating element and a second collimating element, a thin film filter and a tunable optical filter chip functioning as a variable optical attenuator, wherein the tunable optical filter chip is set between the thin film filter and the third output port for each channel, thereby the respective tunable optical filter chip is integrated into the corresponding internal optical path for each channel of WDM to achieve optical-power control for each channel of the WDM.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: May 16, 2006
    Assignee: Accelink Technologies Co., Ltd.
    Inventors: Yuanzhong Xu, Liping Sun, Qianggao Hu, Xiaoping Wu, Shuihua Liu
  • Integrated optical-power adjustable WDM
    Publication number: 20050152642
    Abstract: An integrated optical-power adjustable WDM is provided, which has a plurality of channels, each channel having a first input port, a second output port and a third output port, the second output port of one channel being connected to the first output port of the next channel, the first port of each channel having a waveguide, the third port of each channel having a waveguide, each channel comprising a pair of collimating elements composed of a first collimating element and a second collimating element, a thin film filter and a tunable optical filter chip functioning as a variable optical attenuator, wherein the tunable optical filter chip is set between the thin film filter and the third output port for each channel, thereby the respective tunable optical filter chip is integrated into the corresponding internal optical path for each channel of WDM to achieve optical-power control for each channel of the WDM.
    Type: Application
    Filed: December 23, 2004
    Publication date: July 14, 2005
    Applicant: ACCELINK TECHNOLOGIES CO., LTD.
    Inventors: Yuanzhong Xu, Liping Sun, Qianggao Hu, Xiaoping Wu, Shuihua Liu