Patents by Inventor Didier Sigogne

Didier Sigogne 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).

  • Non-linear optical device for processing an optical signal, comprising an interferometer with multiple arms
    Patent number: 6169824
    Abstract: Non-linear optical device for processing an optical signal, comprising an interferometer with multiple arms. This device comprises an optical interferometer comprising N arms (B1 . . . BN) where N≧3n, N semiconductor optical amplifiers (A1 . . . AN) each being inserted in the N arms, a first optical coupling means (28) that receives a control signal and distributes this control signal into the N arms and a second optical coupling means (32) that receives an input signal and distributes it in at least N-1 of the N arms and collects the light resulting from the distribution of the control signal in the N arms and supplies an output signal which is the resultant of interference of these two light sources. Application to optical telecommunications.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: January 2, 2001
    Assignee: France Telecom
    Inventors: Didier Sigogne, Arnaud Rigny, Sandrine Chelles
  • Semiconductor laser with a saturable absorber
    Patent number: 5283799
    Abstract: In this laser two successive sections of a light guide form a light amplifier (S1) and a saturable absorber (S2). In the invention a passive section (S3) of the guide follows the absorber. The invention is applicable especially to processing an optical signal.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: February 1, 1994
    Assignee: Alcatel N.V.
    Inventors: Joel Jacquet, Denis Leclerc, Jean-Louis Lievin, Didier Sigogne