Patents by Inventor Evandro Lee Anderson SPINOLA DE SOUZA

Evandro Lee Anderson SPINOLA DE SOUZA 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).

  • Multimode optical fiber for power-over-fiber applications with specific refraction index profile
    Patent number: 10197725
    Abstract: A multimode optical fiber for continuous transmission of electromagnetic radiation at high power, wherein the fiber defines a fiber axis and includes a core and a cladding surrounding the core, and wherein the multimode optical fiber is a multimode graded-index fiber, the refraction index profile in the fiber essentially following formula (1): n ? ( r ) = { n 1 ? [ 1 - 2 ? ( r a ) g ? ? ] 1 ? / ? 2 , r < a n 2 , r > a ( 1 ) ? = n 1 2 - n 2 2 2 ? n 1 2 ( A ) NA = n 1 2 - n 2 2 ( B ) where ? is formula (A), r is the distance from the fiber axis, n(r) is the nominal refractive index as a function of distance from the fiber axis, n1 is the nominal refractive index on the axis of the fiber, n2 is the refractive index of the cladding, a is the core radius, and g is a parameter that defines the shape of the profile, where the core diameter 2a is between 90 UM and 190 ?M, the parameter g is between 1.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 5, 2019
    Assignee: PRYSMIAN S.p.A
    Inventors: João Carlos Vieira Da Silva, Evandro Lee Anderson Spìnola De Souza, Valeria Garcia, João Batista Rosolem, Claudio Floridia, Marcos Antonio Brandão Sanches
  • MULTIMODE OPTICAL FIBER FOR POWER-OVER-FIBER APPLICATIONS WITH SPECIFIC REFRACTION INDEX PROFILE
    Publication number: 20180335563
    Abstract: A multimode optical fiber for continuous transmission of electromagnetic radiation at high power, wherein the fiber defines a fiber axis and includes a core and a cladding surrounding the core, and wherein the multimode optical fiber is a multimode graded-index fiber, the refraction index profile in the fiber essentially following formula (1): n ? ( r ) = { n 1 ? [ 1 - 2 ? ( r a ) g ? ? ] 1 ? / ? 2 , r < a n 2 , r > a ( 1 ) ? = n 1 2 - n 2 2 2 ? n 1 2 ( A ) NA = n 1 2 - n 2 2 ( B ) where ? is formula (A), r is the distance from the fiber axis, n(r) is the nominal refractive index as a function of distance from the fiber axis, n1 is the nominal refractive index on the axis of the fiber, n2 is the refractive index of the cladding, a is the core radius, and g is a parameter that defines the shape of the profile, where the core diameter 2a is between 90 UM and 190 ?M, the parameter g is between 1.
    Type: Application
    Filed: November 7, 2014
    Publication date: November 22, 2018
    Inventors: João Carlos VIEIRA DA SILVA, Evandro Lee Anderson SPINOLA DE SOUZA, Valeria GARCIA, João Batista ROSOLEM, Claudio FLORIDIA, Marcos Antonio Brandão SANCHES