Patents by Inventor Reza Motaghian Nezam

Reza Motaghian Nezam 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).

  • Devices and applications based on tunable wave-guiding bragg gratings with nonlinear group delays
    Patent number: 6915040
    Abstract: Techniques, devices, and systems for generating tunable dispersions to control or compensate for dispersions in optical signals by using wave-guiding grating elements with nonlinear group delays.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: July 5, 2005
    Assignee: University of Southern California
    Inventors: Alan E. Willner, Yong-Won Song, S.M. Reza Motaghian Nezam
  • Tunable pulse width generation of return-to-zero format for system optimization
    Publication number: 20040114857
    Abstract: A method for tunable optical pulse width generation comprises varying chirp of the signal of the pulse and concurrently varying dispersion of the signal. A system for tunable pulse width generation comprises a phase modulator providing the chirp modulation by modulating peak to peak phase of an optical signal and a tunable dispersion element providing the chromatic dispersion to the optical signal. A system for tunable pulse width return to zero optical signal transmission comprises at least one optical signal, a plurality of amplitude modulators for modulating the signal and a tunable pulse width generator comprising a phase modulator providing the chirp modulation and a tunable dispersion element providing the dispersion.
    Type: Application
    Filed: March 19, 2003
    Publication date: June 17, 2004
    Inventors: Lianshan Yan, Reza Motaghian Nezam, Alan E. Willner
  • Devices and applications based on tunable wave-guiding bragg gratings with nonlinear group delays
    Publication number: 20030086647
    Abstract: Techniques, devices, and systems for generating tunable dispersions to control or compensate for dispersions in optical signals by using wave-guiding grating elements with nonlinear group delays.
    Type: Application
    Filed: June 13, 2002
    Publication date: May 8, 2003
    Inventors: Alan E. Willner, Yong-Won Song, Joshua E. Rothenberg, S.M. Reza Motaghian Nezam