Patents by Inventor Francesco Gabriele Sartori

Francesco Gabriele Sartori 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).

  • Optical fiber having low non-linearity for WDM transmission
    Patent number: 6922514
    Abstract: An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross-sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: July 26, 2005
    Assignee: Pirelli & C. S.p.A.
    Inventors: Bartolomeo Italo Tirloni, Francesco Gabriele Sartori, Davide Sarchi, Giacomo Stefano Roba
  • Optical fiber having low non-linearity for WDM transmission
    Publication number: 20030128948
    Abstract: An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross-sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.
    Type: Application
    Filed: January 14, 2003
    Publication date: July 10, 2003
    Applicant: PIRELLI CAVI E SISTEMI S.P.A.
    Inventors: Bartolomeo Italo Tirloni, Francesco Gabriele Sartori, Davide Sarchi, Giacomo Stefano Roba
  • Optical fiber having low non-linearity for WDM transmission
    Patent number: 6507689
    Abstract: An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross-sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: January 14, 2003
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventors: Bartolomeo Italo Tirloni, Francesco Gabriele Sartori, Davide Sarchi, Giacomo Stefano Roba
  • Optical fiber having low non-linearity for WDM transmission
    Publication number: 20020090187
    Abstract: An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross-sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.
    Type: Application
    Filed: October 29, 2001
    Publication date: July 11, 2002
    Inventors: Bartolomeo Italo Tirloni, Francesco Gabriele Sartori, Davide Sarchi, Giacomo Stefano Roba