Patents by Inventor Xuezhe Zheng

Xuezhe Zheng 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).

  • Wavelength power equalization by attenuation in an optical switch
    Publication number: 20020168131
    Abstract: A method for equalizing optical signal power in a group of optical signals transmitted through an optical switch in an optical transmission system. In one embodiment a group of optical signals is input into an optical switch having at least one movable mirror array with a plurality of reflectors formed thereon, the optical beam being directed onto a selected at least one reflector and wherein attenuating the optical beam is accomplished by controllably detuning at least one of the selected at least one reflector to attenuate the optical beam.
    Type: Application
    Filed: May 14, 2001
    Publication date: November 14, 2002
    Inventors: Tony Walter, Dan Blumenthal, John E. Bowers, Peter Hunt, Roger J. Helkey, Xuezhe Zheng