Patents by Inventor Mauno Schelb

Mauno Schelb 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).

  • Optical element and method for its manufacture
    Patent number: 8165430
    Abstract: An optical element includes a substrate having a passive waveguide and a laser waveguide disposed therein. The laser waveguide is in direct contact with the passive waveguide over a surface of contact so as to provide a butt coupling between the passive waveguide and the laser waveguide. A step extends between an upper edge of the passive waveguide and an upper edge of the laser waveguide. A covering is disposed on the passive waveguide so that the covering and the substrate together provide a cladding of lower refractive index around the passive waveguide and so that a hollow space is disposed between a lower edge of the covering and the upper edge of the laser waveguide.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: April 24, 2012
    Assignee: Forschungszentrum Karlsruhe GmbH
    Inventors: Timo Mappes, Christoph Vannahme, Mauno Schelb
  • OPTICAL ELEMENT AND METHOD FOR ITS MANUFACTURE
    Publication number: 20100040324
    Abstract: An optical element includes a substrate having a passive waveguide and a laser waveguide disposed therein. The laser waveguide is in direct contact with the passive waveguide over a surface of contact so as to provide a butt coupling between the passive waveguide and the laser waveguide. A step extends between an upper edge of the passive waveguide and an upper edge of the laser waveguide. A covering is disposed on the passive waveguide so that the covering and the substrate together provide a cladding of lower refractive index around the passive waveguide and so that a hollow space is disposed between a lower edge of the covering and the upper edge of the laser waveguide.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 18, 2010
    Applicant: Forschungszentrum Karlsruhe GmbH
    Inventors: Timo Mappes, Christoph Vannahme, Mauno Schelb