Patents by Inventor Alejandro SANCHEZ-POSTIGO

Alejandro SANCHEZ-POSTIGO 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).

  • Waveguide antenna
    Patent number: 12663589
    Abstract: An interface device for performing off-chip coupling in optical waveguides includes an optical waveguide core for propagating light of a particular wavelength or a plurality of wavelengths and an array of radiative elements configured to change the propagation direction of the light. The optical waveguide core is configured to control the effective refractive index of the propagation mode of the light. The device can thus serve as an optical antenna for coupling between a waveguide mode and a free-space propagating beam or a plurality of free-space propagating beams in an arrayed configuration.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: June 23, 2026
    Assignee: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Pavel Cheben, Jens H. Schmid, Pablo Ginel-Moreno, Daniel Pereira-Martin, Abdelfettah Hadij-Elhouati, Winnie N. Ye, Daniele Melati, Dan-Xia Xu, Siegfried Janz, Alejandro Sanchez-Postigo, Alejandro Ortega-Monux, Inigo Molina-Fernandez, J. Gonzalo Wangueemert-Perez
  • WAVEGUIDE ANTENNA
    Publication number: 20230273373
    Abstract: An interface device for performing off-chip coupling in optical waveguides includes an optical waveguide core for propagating light of a particular wavelength or a plurality of wavelengths and an array of radiative elements configured to change the propagation direction of the light. The optical waveguide core is configured to control the effective refractive index of the propagation mode of the light. The device can thus serve as an optical antenna for coupling between a waveguide mode and a free-space propagating beam or a plurality of free-space propagating beams in an arrayed configuration.
    Type: Application
    Filed: July 14, 2021
    Publication date: August 31, 2023
    Inventors: Pavel CHEBEN, Jens H. SCHMID, Pablo GINEL-MORENO, Daniel PEREIRA-MARTIN, Abdelfettah HADIJ-ELHOUATI, Winnie N. YE, Daniele MELATI, Dan-Xia XU, Siegfried JANZ, Alejandro SANCHEZ-POSTIGO, Alejandro ORTEGA-MONUX, Inigo MOLINA-FERNANDEZ, J. Gonzalo WANGUEEMERT-PEREZ