Patents by Inventor Alfonso Cavallaro

Alfonso Cavallaro 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).

  • Method for producing an optical fibre telecommunications cable with reduced polarization mode dispersion
    Patent number: 7016576
    Abstract: An optical cable for telecommunications having an optical core and a plurality of protecting and reinforcing elements or avers placed around the optical core. The optical core has a central reinforcing element, a polymer layer, a plurality of optical fibers incorporated in the polymer layer and a thin sheath which covers the polymer layer. The optical fibers have an alternating spin about their own axes with a maximum value of at least 4 twists per meter, and a core having a mean ellipticity in the range of 0.25 to 0.55, in such a way that the effects of birefringence of the fibers caused by the cabling process are significantly reduced.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: March 21, 2006
    Assignee: Pirelli S.p.A.
    Inventors: Franco Cocchini, Andrea Mazzotti, Alfonso Cavallaro, Francesco Di Nola
  • Method for producing an optical fibre telecommunications cable with reduced polarization mode dispersion
    Publication number: 20040081412
    Abstract: An optical cable for telecommunications having an optical core and a plurality of protecting and reinforcing elements or layers placed around the optical core. The optical core has a central reinforcing element, a polymer layer, a plurality of optical fibres incorporated in the polymer layer and a thin sheath which covers the polymer layer. The optical fibres have an alternating spin about their own axes with a maximum value of at least 4 twists per metre, and a core having a mean ellipticity in the range of 0.25 to 0.55, in such a way that the effects of birefringence of the fibres caused by the cabling process are significantly reduced.
    Type: Application
    Filed: November 13, 2003
    Publication date: April 29, 2004
    Inventors: Franco Cocchini, Andrea Mazzotti, Alfonso Cavallaro, Francesco Di Nola