Patents by Inventor Herve Lefervre

Herve Lefervre 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 fiber wavelength multiplexer and demutiplexer
    Patent number: 6084695
    Abstract: The present invention relates to an optical fiber wavelength multiplexing or demultiplexing device comprising.The multiplexer comprises input fibers (101 to 105) designed for carrying luminous beams at different wavelengths (.lambda.1, .lambda.2, . . . , .lambda.n), an output fiber (161) designed for carrying the whole set of such luminous beams, a dispersing system (107) receiving luminous beams from the input fibers (101 to 105) in an input plane and generating superimposed luminous beams designed for the output fiber (161) in an output plane.A converging lens array (171 to 175) is located in the input plane, whereas a lens corresponds to each input fiber and whereby the said input fiber is placed in the focal point of the said lens.The demultiplexer comprises the same elements, whereas the roles of the fibers and input/ouput planes are reversed.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: July 4, 2000
    Assignee: Photonetics
    Inventors: Philippe Martin, Bernard Laloux, Bertrand Merigot, Herve Lefervre