Patents by Inventor Claudio Naddeo

Claudio Naddeo 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 of and device for measuring the nonlinear refractive index in a single mode optical fibre
    Patent number: 5661554
    Abstract: A train of transform-limited optical pulses with wavelength close to the zero-dispersion wavelength of the fiber and high and variable peak power, such as to give rise to self-phase modulation, is sent into a fiber. The spectral broadening of the signal exiting the fiber is measured for a number of values of the peak power of the pulses and the nonlinear refractive index is obtained from the angular coefficient of the straight line representing spectral broadening versus peak power.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: August 26, 1997
    Assignee: Cselt--Centro Studi e Laboratori Telecomunicazioni S.p.A.
    Inventors: Riccardo Calvani, Renato Caponi, Claudio Naddeo, Diego Roccato