Patents by Inventor Jacques Sapriel

Jacques Sapriel 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).

  • Patent number: 6236479
    Abstract: A space-division optical switching system comprising a multichannel acousto-optical deflector between a plurality of inlet fibers and a plurality of outlet fibers, together with both a plurality of inlet microlenses for collimating beams from the inlet fibers on the deflector and also, downstream from the deflector, a Fourier lens with the said deflector being located in the focal plane thereof, the system including a second multichannel acousto-optical deflector disposed downstream from said lens in the image focal plane thereof, together with a plurality of outlet microlenses serving to focus the beams from the second deflector on the outlet fibers.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: May 22, 2001
    Assignee: France Telecom
    Inventors: Stéphane William Raymond Gosselin, Jacques Sapriel
  • Patent number: 5130843
    Abstract: This device comprises a photoelastic interaction medium between an incident light beam (28) and at least one acoustic or sound wave, as well as means (4, 6) for producing the acoustic or sound wave. The interaction medium is a superlattice (18), which is transparent to the light beam and whose period is close to an integral multiple of half the wavelength of the light beam in the superlattice.Application to the production of acousto-optical deflectors and modulators.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: July 14, 1992
    Assignee: French State represented by the Minister of Post, Telecommunications and Space
    Inventors: Jianjun He, Jacques Sapriel