Patents by Inventor Ada Livia Braverman

Ada Livia Braverman 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).

  • Gain flattened bi-directionally pumped Raman amplifier for WDM transmission systems
    Patent number: 6903863
    Abstract: Raman amplification of a WDM signal with excellent gain flatness across a very large bandwidth is achieved. Co-propagating and counter-propagating Raman pumping are combined in the same fiber. Multiple pumping wavelengths are employed. Wavelengths employed for co-propagating pumping and wavelengths employed for counter-propagating pumping alternate in order of wavelength. In one embodiment, N co-propagating pump wavelengths and N+1 counter-propagating pump wavelengths are used. Alternatively, one may use N+1 co-propagating pump wavelengths and N counter-propagating pump wavelengths.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: June 7, 2005
    Assignee: Cisco Technology, Inc.
    Inventors: Federico Carniel, Fabrizio Di Pasquale, Ada Livia Braverman