Patents by Inventor Jean-Forent Campion

Jean-Forent Campion 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).

  • Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform
    Patent number: 6631628
    Abstract: Natural or synthetic silica is deposited on a preform set into rotation in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of natural or synthetic silica while a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas. Any sodium or lithium contained in the grains of natural or synthetic silica react with the fluorine or chlorine of the fluorine or chlorine compound, thereby making it possible to improve the optical quality of fibers drawn from a preform built up with natural or synthetic silica, and to do so at reduced cost.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: October 14, 2003
    Assignee: Alcatel
    Inventors: Alain Drouart, Benoît Gouez, Yves Lumineau, Pierre Ripoche, Jean-Forent Campion
  • Method of purifying natural or synthetic silica, and application thereof to depositing purified natural or synthetic silica on an optical fiber preform
    Publication number: 20030019245
    Abstract: Natural or synthetic silica is deposited on a preform set into rotation in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of natural or synthetic silica while a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas. Any sodium or lithium contained in the grains of natural or synthetic silica react with the fluorine or chlorine of the fluorine or chlorine compound, thereby making it possible to improve the optical quality of fibers drawn from a preform built up with natural or synthetic silica, and to do so at reduced cost.
    Type: Application
    Filed: September 20, 2002
    Publication date: January 30, 2003
    Applicant: ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECTRICITE
    Inventors: Alain Drouart, Benoit Gouez, Yves Lumineau, Pierre Ripoche, Jean-Forent Campion