Patents by Inventor Gilbert Picoli

Gilbert Picoli 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).

  • Photorefractive device having an electro-optical material between two photoconductive materials
    Patent number: 5539542
    Abstract: A photorefractive apparatus is exposed to a write beam or radiation for creating a system of interference fringes in the apparatus, as well as to a read beam or radiation which diffracts the system created and includes at least one elementary pattern (1) having an electrooptical material (6) with a high electrooptical coefficient with respect to the read radiation, which is transparent to the read radiation and which is surrounded by photoconductive materials (2, 4). The photoconductive materials are transparent to the read radiation and under the effect of the write radiation are able to respectively produce electrons and holes having a high mobility. Application to the optical processing of signals.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: July 23, 1996
    Assignee: France Telecom
    Inventors: Gilbert Picoli, Philippe Gravey, Jean-Emmanuel Viallet