Patents by Inventor Laurence Prigent

Laurence Prigent 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).

  • Optical communication link with correction of non-linear effects and optical signal processing method
    Patent number: 5355240
    Abstract: An optical communication link with correction of non-linear effects comprises an optical fiber transmission line subject to chromatic dispersion and non-linear effects and correction means for limiting the disadvantageous consequences of this dispersion and/or these non-linear effects. The correction means comprise at the output of the transmission line a dispersion compensator adapted to apply dispersion in the opposite direction to and of lower absolute value than the dispersion due to the transmission line.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: October 11, 1994
    Assignee: Alcatel Cit
    Inventors: Laurence Prigent, Olivier Audouin, Jean-Pierre Hamaide, Jose Chesnoy
  • Long-haul optical communication line and method of manufacturing it
    Patent number: 5274733
    Abstract: In a long-haul optical communication line the fibers to be made into the line are grouped into pairs such that the two fibers in each pair have substantially symmetrical chromatic dispersion relative to a mean value of the chromatic dispersion of all the fibers of the line. These two fibers are thereafter connected consecutively into the line. The invention finds an application in telecommunications.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: December 28, 1993
    Assignee: Alcatel Cable
    Inventors: Laurence Prigent, Olivier Audouin