Patents by Inventor Stefan Franz Grünsteidl

Stefan Franz Grünsteidl 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).

  • Adiabatic bend transitions for multimode fibers
    Patent number: 8488234
    Abstract: Guided adiabatic bend transitions for multimode fibers are presented to preserve the power of guided light in the fundamental mode while guiding from one level of curvature to another for improved operation of mode filters and fiber amplifiers. A method is provided to find the guidance path. Implementations of these transducers include modal power back converters, and guidance paths into and out of higher order mode filtering devices which work on bending. A spiral structure is shown to incorporate adiabatic bends for a forward-pumped fiber amplifier.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: July 16, 2013
    Assignee: Kongsberg Seatex AS
    Inventors: Stefan Franz Grünsteidl, João M. Sousa, Martin O. Berendt, Rosa M. Muñiz, Paulo T. Guerreiro
  • Adiabatic bend transitions for multimode fibers
    Publication number: 20110043898
    Abstract: Guided adiabatic bend transitions for multimode fibers are presented to preserve the power of guided light in the fundamental mode while guiding from one level of curvature to another for improved operation of mode filters and fiber amplifiers. A method is provided to find the guidance path. Implementations of these transducers include modal power back converters, and guidance paths into and out of higher order mode filtering devices which work on bending. A spiral structure is shown to incorporate adiabatic bends for a forward-pumped fiber amplifier.
    Type: Application
    Filed: August 24, 2009
    Publication date: February 24, 2011
    Inventors: Stefan Franz Grünsteidl, Joäo M. Sousa, Martin O. Berendt, Rosa M. Muñiz, Paulo T. Guerreiro