Patents by Inventor Zhencan Frank Fan

Zhencan Frank Fan 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).

  • Thermal chirp compensation systems for a chirp managed directly modulated laser (CML™) data link
    Patent number: 7505694
    Abstract: A fiber optic communication system for receiving an electronic digital data signal and transmitting the same, comprising an optical signal source adapted to receive the digital data signal and to produce a frequency modulated optical signal from a directly modulated semiconductor laser; an optical spectrum reshaper adapted to convert the frequency modulated optical signal into an amplitude modulated optical signal; and compensation apparatus for compensating for the adverse effects of the thermal chirp normally induced in the frequency modulated optical signal by modulating the semiconductor laser with the electronic digital data signal.
    Type: Grant
    Filed: May 2, 2005
    Date of Patent: March 17, 2009
    Assignee: Finisar Corporation
    Inventors: Bart Johnson, Daniel Mahgerefteh, Kevin McCallion, Zhencan (Frank) Fan, David Piede, Parviz Tayebati
  • Thermal chirp compensation systems for a chirp managed directly modulated laser (CML™) data Link
    Publication number: 20060078338
    Abstract: A fiber optic communication system for receiving an electronic digital data signal and transmitting the same, comprising an optical signal source adapted to receive the digital data signal and to produce a frequency modulated optical signal from a directly modulated semiconductor laser; an optical spectrum reshaper adapted to convert the frequency modulated optical signal into an amplitude modulated optical signal; and compensation apparatus for compensating for the adverse effects of the thermal chirp normally induced in the frequency modulated optical signal by modulating the semiconductor laser with the electronic digital data signal.
    Type: Application
    Filed: May 2, 2005
    Publication date: April 13, 2006
    Inventors: Bart Johnson, Daniel Mahgerefteh, Kevin McCallion, Zhencan (Frank) Fan, David Piede, Parviz Tayebati
  • Multimode fiber communication system with enhanced bandwidth
    Patent number: 6580543
    Abstract: In accordance with the invention, a multimode optical fiber communication system is provided with offset illumination by disposing an optical pinhole adjacent an end of the multimode fiber core and offset from the center of the core. The pinhole permits direct offset illumination without the difficulty and expense of a conventional patch-cord assembly.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: June 17, 2003
    Assignee: Tri Quint Technology Holding Co.
    Inventors: Zhencan Frank Fan, Hong-Tai Man, Arlen R. Martin, Steven L. Moyer, Mary J. Nadeau, Steven P. O'Neill, John William Osenbach, Edward A. Pitman, Renyi Yang, Craig A. Young