Patents by Inventor Joseph Chon

Joseph Chon 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).

  • Expandable wavelength division multiplexer based on interferometric devices
    Patent number: 6160932
    Abstract: A wavelength division multiplexer (WDM) utilizes cascaded interferometric devices, where the two output branches of interferometric devices in each new stage are each coupled to an additional stage of interferometric devices having the same wavelength separation or channel spacing, which suppresses the sidelobes of the signals from preceding stage of interferometric devices. In one embodiment, the interferometric devices are unbalanced Mach-Zehnder Interferometers.
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: December 12, 2000
    Assignee: WaveSplitter Technologies, Inc.
    Inventors: Chi-hung Huang, Joseph Chon, Sheau Sheng Chen