Patents by Inventor David STOLAREK

David STOLAREK 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).

  • Patent number: 9817295
    Abstract: An injection modulator for modulation of optical radiation, having an optical waveguide and a diode structure, having at least two p-doped semiconductor portions, at least two n-doped semiconductor portions and at least one lightly or undoped intermediate portion between the p-doped and n-doped portions. The p-doped portions when viewed in the longitudinal direction of the waveguide are offset with respect to the n-doped portions and the diode structure is arranged in a resonance-free portion of the waveguide. The p-doped portions lie on one side of the waveguide, the n-doped portions lie on the other side of the waveguide and the intermediate portion lies in the center, each portion extends transversely with respect to the waveguide longitudinal direction in the direction of the waveguide center of the waveguide and no p-doped portion when viewed in the longitudinal direction of the waveguide overlaps any n-doped portion.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: November 14, 2017
    Assignees: TECHNISCHE UNIVERSITAT BERLIN, SICOYA GMBH
    Inventors: Stefan Meister, Aws Al-Saadi, Sebastian Kupijai, Christoph Theiss, Hanjo Rhee, Lars Zimmermann, David Stolarek
  • Publication number: 20170299939
    Abstract: An injection modulator for modulation of optical radiation, having an optical waveguide and a diode structure, having at least two p-doped semiconductor portions, at least two n-doped semiconductor portions and at least one lightly or undoped intermediate portion between the p-doped and n-doped portions. The p-doped portions when viewed in the longitudinal direction of the waveguide are offset with respect to the n-doped portions and the diode structure is arranged in a resonance-free portion of the waveguide. The p-doped portions lie on one side of the waveguide, the n-doped portions lie on the other side of the waveguide and the intermediate portion lies in the center, each portion extends transversely with respect to the waveguide longitudinal direction in the direction of the waveguide center of the waveguide and no p-doped portion when viewed in the longitudinal direction of the waveguide overlaps any n-doped portion.
    Type: Application
    Filed: September 21, 2015
    Publication date: October 19, 2017
    Applicants: TECHNISCHE UNIVERSITAET BERLIN, SICOYA GMBH
    Inventors: Stefan MEISTER, Aws AL-SAADI, Sebastian KUPIJAI, Christoph THEISS, Hanjo RHEE, Lars ZIMMERMANN, David STOLAREK
  • Publication number: 20170242191
    Abstract: The invention relates, inter alia, to a photonically integrated chip (2) having a substrate (20), a plurality of material layers arranged on a top side (21) of the substrate (20), an optical waveguide which is integrated in one or more wave-guiding material layers of the chip (2), and a grating coupler (60) which is formed in the optical waveguide and causes beam deflection of radiation guided in the waveguide in the direction out of the layer plane of the wave-guiding material layer(s) or causes beam deflection of radiation to be coupled into the waveguide in the direction into the layer plane of the wave-guiding material layer(s).
    Type: Application
    Filed: September 25, 2015
    Publication date: August 24, 2017
    Applicants: Technische Universit├Ąt Berlin, Sicoya GmbH
    Inventors: Hanjo RHEE, Marvin HENNIGES, Stefan MERSTER, Christoph THEISS, David SELICKE, David STOLAREK, Lars ZIMMERMANN, Harald H. RICHTER