Patents by Inventor Paulo V. Santos

Paulo V. Santos 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).

  • Tuneable AWG device for multiplexing and demultiplexing signals and method for tuning said device
    Patent number: 9239425
    Abstract: The invention relates to a tuneable AWG device for multiplexing and demultiplexing signals and to a method for tuning said device. The inventive device is an integrated-optic device which enables a signal made up of a plurality of signals multiplexed by wavelength division to be injected through an input port such as to obtain, at the output, a demultiplexed signal with each component exiting via a different port. If the multiplexed signal is changed to another input port, the demultiplexed signals appear at different ports, but always according to a pre-determined relationship. The invention makes it possible to tune the AWG device by using stationary acoustic waves such that the acoustically excited optical guides are excited by a linear acoustic wave.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: January 19, 2016
    Assignees: UNIVERSIDAD POLITÉCNICA DE VALENCIA CAMINO DE VERA, UNIVERSITAT DE VALENCIA, PAUL DRUDE INSTITUT FUER FESTKOERPERELETRONIK
    Inventors: José Capmany Francoy, Pascual Muñoz Muñoz, Mauricio Morais De Lima, Paulo V. Santos
  • TUNEABLE AWG DEVICE FOR MULTIPLEXING AND DEMULTIPLEXING SIGNALS AND METHOD FOR TUNING SAID DEVICE
    Publication number: 20140178004
    Abstract: The invention relates to a tuneable AWG device for multiplexing and demultiplexing signals and to a method for tuning said device. The inventive device is an integrated-optic device which enables a signal made up of a plurality of signals multiplexed by wavelength division to be injected through an input port such as to obtain, at the output, a demultiplexed signal with each component exiting via a different port. If the multiplexed signal is changed to another input port, the demultiplexed signals appear at different ports, but always according to a pre-determined relationship. The invention makes it possible to tune the AWG device by using stationary acoustic waves such that the acoustically excited optical guides are excited by a linear acoustic wave.
    Type: Application
    Filed: May 11, 2012
    Publication date: June 26, 2014
    Applicant: Universidad Politecnica De Valencia
    Inventors: José Capmany Francoy, Pascual Muñoz Muñoz, Mauricio Morais De Lima, Paulo V. Santos
  • Method of fabricating an electronic micropatterned electrode device
    Patent number: 5810945
    Abstract: An electronic device, particularly a solar cell, comprising a layer (16) of amorphous silicon (a-Si) and at least two layered electrodes (14, 18) each having an interface (20, 22) bordering said a-Si layer, in which at least one of the electrodes (14) is provided with pattern elements (14a) forming a preferably periodic micropattern. The average spacing of the pattern elements is preferably in the order of magnitude of the charge carrier drift lengths and is generally smaller than 1 .mu.m, particularly 50 to 500 nm. The micropattern is produced preferably by the effect of a laser beam interference pattern.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: September 22, 1998
    Assignee: Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.
    Inventors: Martin Stutzmann, Christoph E. Nebel, Paulo V. Santos, Moritz Heintze