Patents by Inventor Girorgio Santarelli

Girorgio Santarelli 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).

  • Laser System Provided With a Frequency Servo
    Publication number: 20110310919
    Abstract: The invention relates to a laser system provided with a laser radiation device (1) in which the radiation frequency is controlled by a heterodyne servo circuit particularly using an interferometric circuit (15). Said interferometric circuit comprises a coil of optical fibres (17) which provide a reference for correcting the laser radiation frequency. To obtain good results in the field of spectral purity, all the elements involved in the laser radiation are fibres and the connections thereof are provided by optical fibres. The invention can be used for lasers requiring high spectral purity.
    Type: Application
    Filed: December 3, 2009
    Publication date: December 22, 2011
    Applicants: OBSERVATOIRE DE PARIS, UNIVERSITE PIERRE ET MARIE CURIE, PARIS 6, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Fabien Kefelian, Haifeng Jiang, Pierre Lemonde, Girorgio Santarelli