Patents by Inventor Marko Galarza

Marko Galarza 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).

  • Semiconductor optical component utilizing leaky structures to match the mode of rib waveguides to that of the fiber
    Patent number: 6681069
    Abstract: A waveguide component has a slab waveguide, a rib waveguide, and a mode transition section where the rib waveguide and the slab waveguide are adjacent, and where the rib waveguide is tapered, to provide optical coupling, and lateral confinement rib waveguides are provided along the slab waveguide in the mode transition section to confine light from spreading laterally. The lateral confinement ribs can be formed in the same step with the same mask as used for the taper, to ensure alignment with the taper. They can be arranged either side of the taper. The lateral confinement ribs are significant for enabling a mode transition section which couples with low loss. In particular, it reduces the need for the taper to be so fine, or the taper to be made in both vertical and horizontal axes, both of which cause fabrication difficulties.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: January 20, 2004
    Assignees: Interuniversitair Microelektronica Centrum, Universidad Publica de Navarra, Universiteit Gent
    Inventors: Marko Galarza, Kurt De Mesel, Candido Aramburu, Roel Baets
  • Semiconductor optical component utilizing leaky structures to match the mode of rib waveguides to that of the fiber
    Publication number: 20030007766
    Abstract: A waveguide component has a slab waveguide, a rib waveguide, and a mode transition section where the rib waveguide and the slab waveguide are adjacent, and where the rib waveguide is tapered, to provide optical coupling, and lateral confinement rib waveguides are provided along the slab waveguide in the mode transition section to confine light from spreading laterally. The lateral confinement ribs can be formed in the same step with the same mask as used for the taper, to ensure alignment with the taper. They can be arranged either side of the taper. The lateral confinement ribs are significant for enabling a mode transition section which couples with low loss. In particular, it reduces the need for the taper to be so fine, or the taper to be made in both vertical and horizontal axes, both of which cause fabrication difficulties.
    Type: Application
    Filed: March 29, 2002
    Publication date: January 9, 2003
    Inventors: Marko Galarza, Kurt De Mesel, Candido Aramburu, Roel Baets