Patents by Inventor Fabienne Gaborit

Fabienne Gaborit 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).

  • Semi conductor optical amplifier
    Patent number: 6310719
    Abstract: The invention relates to a semi-conductor optical amplifier insensitive to the polarization of light. The active layer (20) of this amplifier is made up of an alternating series of solid sub-layers alternately under tensile stress (21) and compressive stress (22) and having the same forbidden band-width. The sub-layers under tensile stress (21) favour the propagation of the TM mode of polarization of light and the sub-layers under compression (22) favour the propagation of the TE mode of polarization of light. In addition, the thicknesses of the sub-layers have values which ensure equal gains G(TE) and G(TM) for the active layer.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: October 30, 2001
    Assignee: Alcatel
    Inventors: Leon Goldstein, Jean-Yves Emery, Fabienne Gaborit
  • Semiconductor optical component and amplifier and wavelength converter consisting thereof
    Patent number: 6271961
    Abstract: An active structure in the semiconductor die of an amplifier or converter includes a plurality of stacked active layers with different compositions. The different compositions lead to a spectral offset between the respective gain bands of the layers which widens the gain band of the amplifier or the optical bandwidth of the converter. Applications include fiber optic telecommunication networks.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: August 7, 2001
    Assignee: Alcatel
    Inventors: Jean-Yves Emery, Fabienne Gaborit, Christopher Janz, François Dorgeuille, Béatrice Dagens