Patents by Inventor Jerome Langanay

Jerome Langanay 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).

  • Electro-optical semicoductor modulator, and an optical link including the modulator
    Patent number: 5611003
    Abstract: An electro-optical semiconductor modulator includes two successive segments (SA, SD) each of which applies both attenuation and a phase shift to a light wave (12) in response to a control voltage for controlling the segment. The two segments belong to the same structure having multiple quantum wells. A control generator (4) develops the AC components of the two control voltages (MA, MD) respectively in the form of two different combinations of a reference attenuation (A) and of a reference phase shift (D) to be applied to the light wave (12). The control generator also supplies two DC components (VA, VD) of the control voltages with two different values that are chosen so as to enable the two combinations to actually apply the attenuation (A) and the phase shift (D) to the wave. The invention is applicable in particular to implementing an optical link having a high data-rate.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: March 11, 1997
    Assignee: Alcatel N.V.
    Inventors: Dominique Lesterlin, Jerome Langanay, Jean-Guy Provost