Patents by Inventor Andre Chomette

Andre Chomette 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).

  • Saturatable absorbant with very short switching times
    Patent number: 4720309
    Abstract: This absorbant is of the type formed by superlattice constituted by a stack of films of two different semiconductor materials having gaps of different heights. Thus, a potential well is produced in each film corresponding to the semiconductor with the smallest gap and a potential barrier in each film corresponding to the semiconductor with the largest gap. This saturatable absorbant is characterized in that the films corresponding to the semiconductor with the smallest gap have a thickness, which can assume two values, one small and the other large.Application in optics to the production of mode locking lasers and all optical logic gates.
    Type: Grant
    Filed: July 9, 1986
    Date of Patent: January 19, 1988
    Inventors: Benoit Deveaud, Andre Chomette, Andre Regreny