Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Günther Grönninger"'
Autor:
Michael Stoiber, Konrad Sporrer, Malte Leisner, Christian Lauer, Jens Biesenbach, Uwe Strauss, Günther Grönninger, M. Furitsch, Alexander Bachmann, Heiko Kissel, Volker Grossmann
Publikováno v:
2015 IEEE High Power Diode Lasers and Systems Conference (HPD).
We present improvements of the lateral beam divergence and brightness of gain-guided mini-bars for emission at 976nm at highest brightness levels. The beam characteristics of devices in production are tailored for optimized fiber coupling to fiber di
Autor:
V. Grossmann, Günther Grönninger, Jens Biesenbach, P. Kreuter, M. Stoiber, Heiko Kissel, C. Lauer, M. Furitsch, Harald König, U. Strauβ, K. Sporrer, M. Leisner, A. Bachmann
Publikováno v:
2014 International Semiconductor Laser Conference.
We present recent results on 976nm mini-bars with superior beam divergence at highest power levels tailored for optimized fiber coupling. The emitters (4mm x 100µm) reach 10W cw output power at a conversion efficiency of 64% and a slow-axis divergen
Autor:
Sebastian Hein, Harald König, M. Furitsch, Jens Biesenbach, Christian Lauer, Josip Maric, Uwe Straussa, Paul Wolf, Günther Grönninger, Heiko Kissel, Alvaro Gomez-Iglesias
Publikováno v:
2012 IEEE Photonics Society Summer Topical Meeting Series.
Status on low fill factor 9xx nm laser bars will be presented. Conversion effciency peaks above 66% and slow axis divergence of less than 7° was reached up to 45W for 10%-fill factor half-bars.
Autor:
Josip Maric, Paul Wolf, Günther Grönninger, Heiko Kissel, Alvaro Gomez-Iglesias, Christian Lauer, Harald König, M. Furitsch, Sebastian Hein, Jens Biesenbach, Uwe Strauss
Publikováno v:
SPIE Proceedings.
The impact of new direct-diode and fiber laser systems on industrial manufacturing drives the demand for highbrightness diode laser pump sources suitable for simple fiber coupling with high efficiency. Within the German funded project HEMILAS laser m
Autor:
M. Baeumler, Thierry Fillardet, Tomasz Swietlik, Michael Stoiber, Jens Biesenbach, Helmer Konstanzer, Uwe Strauss, Günther Grönninger, Christian Lauer, Iris Scholl, Harald König, Markus Keidler, Robin Fehse, Martin Müller, Andreas Kohl
Publikováno v:
SPIE Proceedings.
Semiconductor lasers with emission in the range 790 880 nm are in use for a variety of application resulting in different laser designs to fulfill requirements in output power, operation temperature and lifetimes. The output power is limited by se
Autor:
Christian Lauer, Uwe Strauss, M. Puschmann, H. Kissel, Harald König, J. Biesenbach, Günther Grönninger, Robin Fehse
Publikováno v:
2009 High Power Diode Lasers and Systems Conference.
In figure 2 the BPP vs. optical power is plotted for the three discussed chip designs at 980nm. As the BPP (in slow axis) scales linearly with the number of emitters per bar (when keeping the power/emitter constant) the dotted straight lines indicate
Autor:
Uwe Strauss, Jens Biesenbach, Josip Maric, Andreas Hammer, Heiko Kissel, Harald König, Christian Lauer, Günther Grönninger, Matthias Haag
Publikováno v:
SPIE Proceedings.
New semiconductor multi emitters combine the advantages of laser bars and strength of single emitters for fiber coupling applications. We introduce a new technology to drive the device at highest power density at the laser facet. The new technology e
Autor:
Uwe Strauß, Jens Biesenbach, Michael Stoiber, Harald König, D. Lorenzen, Petra Hennig, Peter Brick, Martin Reufer, Günther Grönninger, Götz Erbert, Frank Bugge
Publikováno v:
SPIE Proceedings.
High power semiconductor lasers are commonly used as efficient pump sources for solid state lasers or multiplexing applications. Common wavelengths are 808nm e.g. for pumping of Nd:YAG and 9xx nm for pumping of disk or fiber lasers. Together with the
Autor:
D. Lorenzen, Günther Grönninger, Harald König, Marc Philippens, Michael Stoiber, Martin Müller, Gerhard Herrmann, Martin Reufer, Jürgen Moosburger, Johann Luft
Publikováno v:
SPIE Proceedings.
In this paper we report on quasi-continuous-wave (q-cw) operation of monolithically stacked laser diode bars. Monolithically stacked laser diode bars consist of more than one laser diode grown on top of each other. In between every two laser diodes a