Patents by Inventor Kuang Tsan T. Wu

Kuang Tsan T. 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).

  • Frequency agile transmitter and receiver architecture for DWDM systems
    Patent number: 7209664
    Abstract: A frequency-agile optical transceiver includes a shared local oscillator (LO), a coherent optical receiver and an optical transmitter. The LO operates to generate a respective LO optical signal having a predetermined LO wavelength. The coherent optical receiver is operatively coupled to the LO, and uses the LO signal to selectively receive traffic of an arbitrary target channel of an inbound broadband optical signal. The optical transmitter is also operatively coupled to the LO, and uses the LO to generate an outbound optical channel signal having a respective outbound channel wavelength corresponding to the LO wavelength.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: April 24, 2007
    Assignee: Nortel Networks Limited
    Inventors: John D. McNicol, Kuang Tsan T. Wu, Adrien A. Comeau