Patents by Inventor Peter P. Zhao

Peter P. Zhao 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).

  • Interleaver-based multiplexer and demultiplexer
    Publication number: 20040018019
    Abstract: A demultiplexer system having an interleaver for dividing the incoming wavelength-division multiplexed (WDM) signal into interleaved WDM signals and a single demultiplexing device for demultiplexing the de-interleaved WDM signals into single-channel signals is disclosed. Because a single demultiplexing device is used, size and cost savings can be realized.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 29, 2004
    Inventors: Jonathan P. Lacey, Brian E. Lemoff, William R. Trutna,, Glenn H. Rankin, Peter P. Zhao, Kenneth R. Wildnauer
  • Optical interleaver
    Publication number: 20030068120
    Abstract: An interleaver implemented using a directional separator and Bragg grating sections is disclosed. Wavelength division multiplexed (WDM) signal enters the interleaver and is directed from the input medium to a first output medium. The first output medium includes Bragg grating segments designed to reflect alternating channels of the WDM signal. The reflected channels are directed to a second output medium.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 10, 2003
    Inventors: Jonathan P. Lacey, Brian E. Lemoff, William R. Trutna, Glenn H. Rankin, Peter P. Zhao, Kenneth R. Wildnauer
  • Optical demultiplexing device with optical to electrical conversion
    Publication number: 20030058498
    Abstract: An optical demultiplexer is implemented using a dispersive means and a photodetector array. An incoming wave division multiplexed (WDM) signal is dispersed into its component optical channels, and each optical channel is converted into its corresponding electrical signal. Outputs of the optical multiplexer are electrical signals.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 27, 2003
    Inventors: Jonathan P. Lacey, Brian E. Lemoff, William R. Trutna, Peter P. Zhao, Glenn H. Rankin, Kenneth R. Wildnauer