Patents by Inventor Isabelle DeCaux

Isabelle DeCaux 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).

  • Process for producing an optical-fibre preform, optical-fibre preform and optical fibre associated therewith
    Publication number: 20060016225
    Abstract: The invention relates to the field of optical fibres, to optical-fibre preforms and to processes for producing a final optical-fibre preform obtained by plasma built-up on a primary preform. The invention relates especially to a final optical-fibre preform comprising a primary preform (3) obtained by a VAD deposition process or an OVD deposition process, a silica sleeve tube (4) surrounding the primary preform (3), and a built-up layer (5) made of silica particles surrounding the silica sleeve tube (4).
    Type: Application
    Filed: December 14, 2004
    Publication date: January 26, 2006
    Inventors: Jean-Florent Campion, Isabelle Decaux, Virginie Herchuelz
  • Method of producing optical fiber preforms
    Publication number: 20040109942
    Abstract: In an FCVD process for producing preforms for dispersion shifted optical fiber or dispersion compensating optical fiber having a core comprising a central portion, an inner cladding, a ring, and an outer cladding by depositing layers, the layers of the preform corresponding to the inner cladding and to the ring of the optical fiber have a phosphorus content not greater than 0.1 wt %.
    Type: Application
    Filed: November 25, 2003
    Publication date: June 10, 2004
    Applicant: ALCATEL
    Inventors: Jacques Jolly, Isabelle Decaux, Marie-Pierre Glemot, Nathalie Offre, Jean-Florent Campion
  • Method for reducing the hydrogen sensitivity of optical fibers at 1380nm-1410 nm
    Patent number: 6704485
    Abstract: A method for reducing the hydrogen aging loss of silica optical fibers by irreversible reaction of the peroxide defects with deuterium is described. This method comprises the step of contacting the optical fiber with deuterium by exposure to a gas mixture containing deuterium at a temperature compatible with the fiber without exposing the fiber to any further activation, and subsequently the step of degassing the fiber in a neutral atmosphere. The invention relates further to a process of producing optical fibers with low hydrogen aging loss wherein an optical fiber is treated using the method for reducing the hydrogen aging loss. Finally, the invention relates to optical fibers with low hydrogen aging loss obtainable by this process and telecommunication cables produced using these optical fibers. Using the new method, an activation step using intense light and/or elevated temperature is not necessary to achieve the reaction of peroxide defects in silica with deuterium.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: March 9, 2004
    Assignee: Alcatel
    Inventors: Jean-Florent Campion, Isabelle DeCaux, Philippe Dupont, Terry Voots, José G. Piffaretti, Roger Charlton
  • METHOD FOR REDUCING THE HYDROGEN SENSITIVITY OF OPTICAL FIBERS AT 1380NM - 1410 NM
    Publication number: 20040037526
    Abstract: A method for reducing the hydrogen aging loss of silica optical fibers by irreversible reaction of the peroxide defects with deuterium is described.
    Type: Application
    Filed: August 22, 2001
    Publication date: February 26, 2004
    Applicant: ALCATEL
    Inventors: Jean-Florent Campion, Isabelle DeCaux, Philippe Dupont, Terry Voots, Jose G. Piffaretti, Roger Charlton