Patents by Inventor Dirk Nodop

Dirk Nodop 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: 9057928
    Abstract: The invention relates to an apparatus for generation of electromagnetic radiation, having a pump light source that emits an excitation radiation at a first wavelength, and having an optical waveguide that generates frequency-converted radiation at a second and a third wavelength, by means of degenerate wave mixing, from the excitation radiation of the pump light source.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: June 16, 2015
    Assignees: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Friedrich-Schiller-Universitaet Jena
    Inventors: César Jauregui Misas, Andreas Tuennermann, Jens Limpert, Dirk Nodop
  • Patent number: 8948219
    Abstract: The invention relates to a laser system with a passively Q-switched laser 1, a spectrally widening element 3, and a compression element 4. Laser systems of this kind are utilized for generating ultra-short laser pulses. Systems, mode-coupled solid-state lasers known from prior art allow for generating laser pulses in the sub-10 ps range only with complicated and alignment-sensitive free-beam arrangements. Therefore, it is the object of the present invention to create a laser system that generates pulse durations of less than 10 ps and which is simple and compact to produce at the same time. In order to achieve this object, the present invention proposes that the passively Q-switched laser 1 is provided with a longitudinally monomode output radiation which is spectrally widened by means of the spectrally widening element 3 by self-phase modulation and is temporally compressed by the compression element 4.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: February 3, 2015
    Assignees: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V., Friedrich-Schiller-Universitaet Jena
    Inventors: Dirk Nodop, Alexander Steinmetz, Jens Limpert, Andreas Tuennermann
  • Patent number: 8625644
    Abstract: The invention relates to a Q-switched laser comprised of a pump light source (1), an optical resonator accommodating a laser medium (6), and a passive Q-switch (5). It is the object of the present invention to provide an improved Q-switched laser which is of a simple and compact setup while having the least possible jitter of the repetition time. To achieve this target, the invention proposes that by means of a beam splitter (8) part of the light coupled out of the optical resonator is passed on to an optical delay line (9) and coupled back into the optical resonator upon having passed through the optical delay line (9).
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: January 7, 2014
    Assignees: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V., Friedrich-Schiller-Universitat Jena
    Inventors: Andreas Tünnermann, Dirk Nodop, Alexander Steinmetz, Jens Limpert
  • Publication number: 20140002890
    Abstract: The invention relates to an apparatus for generation of electromagnetic radiation, having a pump light source that emits an excitation radiation at a first wavelength, and having an optical waveguide that generates frequency-converted radiation at a second and a third wavelength, by means of degenerate wave mixing, from the excitation radiation of the pump light source.
    Type: Application
    Filed: December 19, 2011
    Publication date: January 2, 2014
    Applicants: FRIEDRICH-SCHILLER-UNIVERSITAET JENA, FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: César Jauregui Misas, Andreas Tuennermann, Jens Limpert, Dirk Nodop
  • Publication number: 20140002893
    Abstract: The invention relates to a fiber amplifier system for amplifying and emitting pulsed radiation, having a master source (1) which emits pulsed output radiation, and at least one amplifier stage (4), which is arranged after the master source (1) in the direction of radiation, and which amplifies the output radiation. The aim of the invention is to provide a fiber amplifier system for amplifying and emitting pulsed radiation which avoids stimulated Brillouin scattering as effectively as possible and at the same time can be produced simply and inexpensively. To this end, the output radiation emitted by the master source (1) is broadband and is generated substantially by means of spontaneous emission.
    Type: Application
    Filed: November 25, 2011
    Publication date: January 2, 2014
    Applicants: FRIEDRICH-SCHILLER-UNIVERSITAET JENA, FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Dirk Nodop, Jens Limpert, Andreas Tuennermann
  • Publication number: 20130083814
    Abstract: The invention relates to a laser system with a passively Q-switched laser 1, a spectrally widening element 3, and a compression element 4. Laser systems of this kind are utilized for generating ultra-short laser pulses. Systems, mode-coupled solid-state lasers known from prior art allow for generating laser pulses in the sub-10 ps range only with complicated and alignment-sensitive free-beam arrangements. Therefore, it is the object of the present invention to create a laser system that generates pulse durations of less than 10 ps and which is simple and compact to produce at the same time. In order to achieve this object, the present invention proposes that the passively Q-switched laser 1 is provided with a longitudinally monomode output radiation which is spectrally widened by means of the spectrally widening element 3 by self-phase modulation and is temporally compressed by the compression element 4.
    Type: Application
    Filed: April 13, 2011
    Publication date: April 4, 2013
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V., FRIEDRICH-SCHILLER-UNIVERSITAET JENA
    Inventors: Dirk Nodop, Alexander Steinmetz, Jens Limpert, Andreas Tuennermann
  • Publication number: 20120242973
    Abstract: The invention relates to a Q-switched laser comprised of a pump light source (1), an optical resonator accommodating a laser medium (6), and a passive Q-switch (5). It is the object of the present invention to provide an improved Q-switched laser which is of a simple and compact setup while having the least possible jitter of the repetition time. To achieve this target, the invention proposes that by means of a beam splitter (8) part of the light coupled out of the optical resonator is passed on to an optical delay line (9) and coupled back into the optical resonator upon having passed through the optical delay line (9).
    Type: Application
    Filed: September 17, 2010
    Publication date: September 27, 2012
    Inventors: Andreas Tünnermann, Dirk Nodop, Alexander Steinmetz, Jens Limpert