Patents by Inventor Philippe Coeure

Philippe Coeure 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).

  • Optical wave guide having distributed gyrotropy
    Patent number: 4047801
    Abstract: The wave guide is constituted by a film layer C.sub.1 of magnetizable material having a constant refractive index n.sub.1 and placed between two media having refractive indices of lower value than the index n.sub.1. The layer C.sub.1 has two flat parallel surfaces which separate the layer C.sub.1 from the two media which have lower refractive indices and is constituted by a plurality of adjacent regions forming parallel layers, the gyrotropy of at least two of these regions being different.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: September 13, 1977
    Inventors: Didier Challeton, Philippe Coeure, Jean Pierre Jadot, Jean Claude Peuzin
  • Optical wave guide for carrying out phase-tuning between two modes of light propagation
    Patent number: 4032217
    Abstract: A dielectric film layer C.sub.2 is deposited on a transparent film layer C.sub.1 in which two optical transverse TE and TM modes propagate and is provided with a metallic coating having reflecting properties on the face which is not in contact with the layer C.sub.1. The thickness of the layer C.sub.2 is such that phase-tuning is effected along the direction of propagation of the two TE and TM waves within the wave guide as essentially constituted by the layer C.sub.1.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: June 28, 1977
    Assignees: Commissariat a l'Energie Atomique, Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Philippe Coeure, Jean Pierre Jadot, Jean Claude Peuzin