Patents by Inventor Valentina Ruseva

Valentina Ruseva 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).

  • Atomic frequency standard based on enhanced modulation efficiency semiconductor lasers
    Publication number: 20090256638
    Abstract: This invention concerns the realization of a Coherent-Population-Trapping (CPT) atomic frequency standard using a laser which has feedback from an external cavity. The mode spacing of the external cavity is adjusted to equal the hyperfine transition frequency of the atomic vapor or a sub-harmonic of it. The external cavity enhances the modulation response at the required atomic transition and improves the stability of the frequency standard.
    Type: Application
    Filed: March 30, 2009
    Publication date: October 15, 2009
    Inventors: Michael Rosenbluh, Nemi Gavra, Valentina Ruseva, Avinoam Stern, Gad Eisenstein, Benny Levy