Patents by Inventor N. Patrick Wang

N. Patrick Wang 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: 20030175030
    Abstract: A reconfigurable liquid crystal based optical add/drop multiplexer system and method are provided which incorporates switching, variable attenuation, and multiplexing/demultiplexing capabilities. In a preferred embodiment, an array of optical rails is provided such that the integration of multiplexing/demultiplexing, switching, and variable optical attenuation functionalities are achieved. The module is also able to perform add and drop functions independently. The system has no moving parts so that the module is durable and very reliable. The system may include a feedback system for performing channel equalization.
    Type: Application
    Filed: March 18, 2002
    Publication date: September 18, 2003
    Inventors: Shuqiang Chen, N. Patrick Wang, Shanti Cavanaugh, Igor Stouklov, Niannan Cai