Patents by Inventor Marcel Rattunde

Marcel Rattunde 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: 9893491
    Abstract: A micromechanically produced optical device includes: a carrier for carrying the micromechanically produced device; a diffraction grating for diffracting light; a plate for carrying the diffraction grating; and deflectors for deflecting the plate in relation to the carrier, the deflectors comprising bearings for movably bearing the plate and a driver for moving the plate; the deflectors being configured for rotational deflection of the plate and for translational deflection of the plate.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: February 13, 2018
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Harald Schenk, Jan Grahmann, Joachim Wagner, Ralf Ostendorf, Marcel Rattunde
  • Patent number: 9716364
    Abstract: An optically pumped semiconductor disk laser including a pump light source, at least one semiconductor body (2), which semiconductor body (2) has at least one window region (8), an active region (7) and a reflection device (P), which reflection device has at least one first P-reflection element (P1) for the pump wavelength. The first P-reflection element (P1) is embodied and arranged such that pump light emerging from the pump light source (3) can be guided for at least two passes through the active region (7). A total thickness of the active region (7) and of the window region (8) in the direction of an optical axis of the semiconductor disk laser is less than three times the laser wavelength in the active region (7).
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: July 25, 2017
    Assignee: Fraunhofer•Gesellschaft Zur Förderung der Angewandten Forschung E.V.
    Inventors: Tino Topper, Marcel Rattunde, Sebastian Kaspar, Joachim Wagner
  • Publication number: 20160336720
    Abstract: A micromechanically produced optical device includes: a carrier for carrying the micromechanically produced device; a diffraction grating for diffracting light; a plate for carrying the diffraction grating; and deflectors for deflecting the plate in relation to the carrier, the deflectors comprising bearings for movably bearing the plate and a driver for moving the plate; the deflectors being configured for rotational deflection of the plate and for translational deflection of the plate.
    Type: Application
    Filed: July 29, 2016
    Publication date: November 17, 2016
    Inventors: Harald SCHENK, Jan GRAHMANN, Joachim WAGNER, Ralf OSTENDORF, Marcel RATTUNDE
  • Publication number: 20150270677
    Abstract: An optically pumped semiconductor disk laser including a pump light source, at least one semiconductor body (2), which semiconductor body (2) has at least one window region (8), an active region (7) and a reflection device (P), which reflection device has at least one first P-reflection element (P1) for the pump wavelength. The first P-reflection element (P1) is embodied and arranged such that pump light emerging from the pump light source (3) can be guided for at least two passes through the active region (7). A total thickness of the active region (7) and of the window region (8) in the direction of an optical axis of the semiconductor disk laser is less than three times the laser wavelength in the active region (7).
    Type: Application
    Filed: March 18, 2015
    Publication date: September 24, 2015
    Applicant: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Tino Topper, Marcel Rattunde, Sebastian Kaspar, Joachim Wagner
  • Patent number: 8811442
    Abstract: The present invention relates to a semiconductor laser having at least one quantum film in which electron hole pairs can be recombined, having at least two barrier layers between which respectively one of the at least one quantum films is disposed adjacently to these, directly in a planar manner or via respectively one intermediate film, and also having a pump device, the barrier layers having or consisting of AlzGa1-zAsySb1-y, with y greater than or equal to zero and less than or equal to one and z less than or equal to one and greater than 0.4, and/or having or consisting of AlzGauInvAsySb1-y, with z+u+v=1 and z greater than 0.25, the electron hole pairs being able to be produced directly in the quantum film with the pump device.
    Type: Grant
    Filed: August 13, 2010
    Date of Patent: August 19, 2014
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: Nicola Schulz, Marcel Rattunde, Joachim Wagner, Benno Rösener
  • Publication number: 20110013658
    Abstract: The present invention relates to a semiconductor laser having at least one quantum film in which electron hole pairs can be recombined, having at least two barrier layers between which respectively one of the at least one quantum films is disposed adjacently to these, directly in a planar manner or via respectively one intermediate film, and also having a pump device, the barrier layers having or consisting of AlzGa1-zAsySbi-y, with y greater than or equal to zero and less than or equal to one and z less than or equal to one and greater than 0.4, and/or having or consisting of AlzGauInvAsySb1-y, with z+u+v=1 and z greater than 0.25, the electron hole pairs being able to be produced directly in the quantum film with the pump device.
    Type: Application
    Filed: August 13, 2010
    Publication date: January 20, 2011
    Inventors: Nicola Schulz, Marcel Rattunde, Joachim Wagner, Benno Rösener