Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
20156.8 kW peak power quasi-continuous wave tandem-pumped Ytterbium amplifier at 1071nm
Beier, Franz; Strecker, M.; Nold, Johannes; Haarlammert, Nicoletta; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2015BBO sapphire compound for high-power frequency conversion
Rothhardt, Carolin; Rothhardt, Jan; Klenke, Arno; Peschel, Thomas; Eberhardt, Ramona; Limpert, Jens; Tünnermann, Andreas
Conference Paper
2015Demonstration of >5kW emissions with good beam quality from two different 7:1 all-glass fiber coupler-types
Plötner, Marco; Eschrich, T.; Vries, Oliver de; Kobelke, J.; Unger, S.; Jäger, M.; Schreiber, Thomas; Bartel, H.; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2015Development, fabrication, and testing of an anamorphic imaging snap-together freeform telescope
Beier, Matthias; Hartung, Johannes; Peschel, Thomas; Damm, Christoph; Gebhardt, Andreas; Scheiding, Sebastian; Stumpf, Daniela; Zeitner, Uwe D.; Risse, Stefan; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2015High-brightness incoherent combination of fiber lasers in 7 x 1 fiber couplers at average powers > 5 kW
Jäger, Matthias L.; Plötner, Marco; Eschrich, Tina; Vries, Oliver de; Kobelke, Jens; Schreiber, Thomas; Unger, Sonja; Eberhardt, Ramona; Bartelt, Hartmut; Tünnermann, Andreas
Journal Article
2015Metal mirrors with metal-dielectric HR-coating for ultrashort laser pulses applied in scanner applications
Schürmann, Mark; Risse, Stefan; Kämmer, H; Franke, Christian; Schlegel, Ralph; Müller, Sandra; Damm, Christoph; Steinkopf, Ralf; Dreisow, F.; Nolte, Stefan; Eberhardt, Ramona; Kaiser, Norbert
Conference Paper
2015Optimizing mode instability in low-NA fibers by passive strategies
Haarlammert, Nicoletta; Sattler, Bettina; Liem, Andreas; Strecker, Maximilian; Nold, Johannes; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas; Ludewigt, Klaus; Jung, Markus
Journal Article
2015Polymer-based pull-in free electrostatic microactuators fabricated on wafer-level
Lange, Nicolas; Wippermann, Frank; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2015Solderjet bumping technique used to manufacture a compact and robust green solid-state laser
Ribes, P.; Burkhardt, Thomas; Hornaff, Marcel; Kousar, S.; Burkhardt, D.; Beckert, Erik; Gilaberte, M.; Guilhot, D.; Montes, D.; Galan, M.; Ferrando, S.; Laudisio, M.; Belenguer, T.; Ibarmia, S.; Gallego, P.; Rodriguez, J.A.; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2014(Invited) Glass-Glass Direct Bonding
Kalkowski, Gerhard; Risse, Stefan; Zeitner, Uwe; Fuchs, Frank; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
20141009 nm continuous-wave ytterbium-doped fiber amplifier emitting 146 W
Beier, Franz; Otto, Hans-Jürgen; Jauregui, Cesar; Vries, Oliver de; Schreiber, Thomas; Limpert, Jens; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2014146W continuous wave ytterbium doped fiber amplifier at 1009 nm
Beier, Franz; Otto, Hans-Jürgen; Sattler, Bettina; Plötner, Marco; Haarlammert, Nicoletta; Vries, Oliver de; Jauregui, Cesar; Schreiber, Thomas; Limpert, Jens; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2014Analysis of stimulated Raman scattering in cw kW fiber oscillators
Schreiber, Thomas; Liem, Andreas; Freier, E.; Matzdorf, Christian; Eberhardt, Ramona; Jauregui, Cesar; Limpert, Jens; Tünnermann, Andreas
Conference Paper
2014BBO-sapphire sandwich structure for frequency conversion of high power lasers
Rothhardt, Carolin; Rothhardt, Jan; Klenke, Arno; Peschel, Thomas; Eberhardt, Ramona; Limpert, Jens; Tünnermann, Andreas
Journal Article
2014CO2-laser based fiber coating process for high power fiber application
Böhme, Steffen; Hirte, K.; Fabian, Simone; Hupel, Christian; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2014Figure correction of freeform mirrors with well-defined reference structures by MRF
Beier, Matthias; Scheiding, Sebastian; Gebhardt, Andreas; Risse, Stefan; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2014Inkjet printed micropump actuator based on piezoelectric polymers: Device performance and morphology studies
Pabst, Oliver; Hölzer, Stefan; Beckert, Erik; Perelaer, Jolke; Schuber, Ulrich S.; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2014Manipulation of metalized textile fibers for laser structuring
Mohaupt, Matthias; Kamm, Andreas; Beckert, Erik; Schreiber, Peter; Fischer, Stephanie; Eberhardt, Ramona; Dreisow, Felix; Nolte, Stefan; Ullsperger, Tobias; Pause, Siegfried; Hebel, Robert
Conference Paper
2014Modeling of laser patterning of thin-film solar cells
Peschel, Thomas; Matthäus, Gabor; Nolte, Stefan; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2014Solderjet technology used to assemble a robust miniaturized solid-state laser
Ribes, Pol; Burkhardt, Thomas; Hornaff, Marcel; Kousar, Sumera; Burkhardt, Diana; Beckert, Erik; Gilaberte, Marta; Guilhot, Denis; Montes, David; Galan, Miguel; Ferrando, Sara; Eberhardt, Ramona; Tünnermann, Andreas
Presentation
2014Spatially resolved 3D-measurements of long-period gratings written by fs-laser inscription in large mode area fibers
Kliner, Andrea; Krämer, Ria G.; Voigtländer, Christian; Theuer, F.; Schreiber, Thomas; Eberhardt, Ramona; Nolte, Stefan; Tünnermann, Andreas
Conference Paper
2013All inkjet-printed electroactive polymer actuators for microfluidic lab-on-chip systems
Pabst, Oliver; Beckert, Erik; Perelaer, Jolke; Schubert, Ulrich S.; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2013All inkjet-printed piezoelectric polymer actuators: Characterization and applications for micropumps in lab-on-a-chip systems
Pabst, Oliver; Perelaer, Jolke; Beckert, Erik; Schubert, Ulrich S.; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2013Chalcogenide - mold interactions during Precision Glass Molding (PGM) of GeAsSe glasses
Gleason, Benn; Wachtel, Peter B.; Musgraves, Jonathan David; Steinkopf, Ralf; Eberhardt, Ramona; Richardson, Kathleen A.
Conference Paper
2013Design and wafer-level replication of a freeform curvature for polymer-based electrostatic out-of-plane actuators
Lange, Nicolas; Scheiding, Sebastian; Wippermann, Frank; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2013Development of a low cost high precision three-layer 3D artificial compound eye
Zhang, Hao; Li, Lei; McCray, David L.; Scheiding, Sebastian; Naples, Neil J.; Gebhardt, Andreas; Risse, Stefan; Eberhardt, Ramona; Tünnermann, Andreas; Yi, Allen Y.
Journal Article
2013Experimental analysis of the influence of the spectral width of out-coupling Fiber Bragg Gratings to the amount of Stimulated Raman Scattering in a cw kW fiber oscillator
Liem, Andreas; Freier, Erik; Matzdorf, Christian; Reichel, Volker; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2013Fabrication and evaluation of a 500 W cladding-light stripper
Kliner, Andrea; Hou, Kai-Chung; Plötner, Marco; Hupel, Christian; Stelzner, Thomas; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2013Fabrication of a high power Faraday isolator by direct bonding
Rothhardt, Carolin; Rekas, Miroslaw; Kalkowski, Gerhard; Haarlammert, Nicoletta; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2013Fabrication of high precision metallic freeform mirrors with magnetorheological finishing (MRF)
Beier, Matthias; Scheiding, Sebastian; Gebhardt, Andreas; Loose, Roman; Risse, Stefan; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2013Hochgenaue Referenzflächenbearbeitung asphärischer, zylindrischer und prismatischer Optikkomponenten
Beier, Matthias; Gebhardt, Andreas; Platzdasch, Anne; Guyenot, Volker; Eberhardt, Ramona
Book Article
2013Inkjet printed silver back contacts for flexible amorphous silicon thin-film solar cells on glass fiber fabrics
Kemper, Falk; Eberhardt, Ramona; Beckert, Erik; Tünnermann, Andreas; Plentz, Jonathan; Andrä, Gundrun
Conference Paper
2013Inkjet printed structures for smart lab-on-chip systems
Beckert, Erik; Eberhardt, Ramona; Pabst, Oliver; Kemper, Falk; Shu, Zhe; Tünnermann, Andreas; Perelaer, Jolke; Schubert, Ulrich; Becker, Holger
Conference Paper
2013Inkjet-printed functionalities for microfluidic Lab-on-a-Chip systems
Beckert, Erik; Pabst, Oliver; Shu, Zhe; Perelaer, Jolke; Eberhardt, Ramona; Tünnermann, Andreas; Schubert, Ulrich; Becker, Holger
Conference Paper
2013Innovative approach to high stroke electrostatic actuators
Lange, Nicolas; Wippermann, Frank; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2013Manufacturing of a precision 3D microlens array on a steep curved substrate by injection molding process
Zhang, Hao; Scheiding, Sebastian; Li, Lei; Gebhardt, Andreas; Risse, Stefan; Eberhardt, Ramona; Tünnermann, Andreas; Yi, Allen Y.
Journal Article
2013Polarization dependent nonlinear limitations in continuous-wave high power fiber amplifiers
Haarlammert, Nicoletta; Rekas, Miroslaw; Vries, Oliver de; Kliner, Andrea; Liem, Andreas; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2013Robust 1550-nm single-frequency all-fiber ns-pulsed fiber amplifier for wind-turbine predictive control by wind lidar
Beier, Franz; Vries, Oliver de; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas; Bollig, Christoph; Hofmeister, Paul Gerke; Schmidt, Jochen; Reuter, Rainer
Conference Paper
2013Thermomechanical design, hybrid fabrication, and testing of a MOEMS deformable mirror
Reinlein, Claudia; Appelfelder, Michael; Gebhardt, Sylvia; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2012Analyse des thermischen Ausdehnungskoeffizienten von Chemisch Nickel für Tieftemperaturanwendungen
Kinast, Jan; Gebhardt, Andreas; Schönherr, Veit; Eberhardt, Ramona
Conference Paper
2012Build up and decay of mode instability in a high power fiber amplifier
Haarlammert, Nicoletta; Vries, Oliver de; Liem, Andreas; Kliner, Andrea; Peschel, Thomas; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2012Die-attach technologies for ultraviolet LED multi-chip module based on ceramic substrate
Burkhardt, Thomas; Hornaff, Marcel; Acker, Anne; Peschel, Thomas; Beckert, Erik; Suphan, Karl-Heinz; Mesel, Karsten; Jirak, Stephan; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2012Direct wafer bonding for encapsulation of fused silica optical gratings
Kalkowski, Gerhard; Zeitner, Uwe Detlef; Benkenstein, Tino; Fuchs, J. Hans-Jörg; Rothhardt, Carolin; Eberhardt, Ramona
Journal Article, Conference Paper
2012End cap splicing of photonic crystal fibers with outstanding quality for high-power applications
Böhme, Steffen; Fabian, Simone; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Fly-cutting and testing of freeform optics with sub-µm shape deviations
Steinkopf, Ralf; Scheiding, Sebastian; Gebhardt, Andreas; Risse, Stefan; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Glass direct bonding for optical applications
Kalkowski, Gerhard; Rothhardt, Carolin; Jobst, Paul-Johannes; Schürmann, Mark; Eberhardt, Ramona
Journal Article
2012High stroke polymer based electrostatic actuators
Lange, Nicolas; Wippermann, Frank; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012High-power fiber lasers and amplifiers: Fundamentals and enabling technologies to enter the upper limits
Schreiber, Thomas; Eberhardt, Ramona; Limpert, Jens; Tünnermann, Andreas
Book Article
2012Influence of thermal load on 450mm Si-wafer IPD during lithographic patterning
Peschel, Thomas; Kalkowski, Gerhard; Eberhardt, Ramona
Conference Paper
2012Inkjet printing of functional structures for lab-on-chip systems
Pabst, Oliver; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Lens centering of aspheres for high-quality optics
Beier, Matthias; Gebhardt, Andreas; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2012Limitations of narrow-bandwidth amplification at different seed wavelengths in Ytterbium-doped fibers
Rekas, Miroslaw; Haarlammert, Nicoletta; Kliner, Andrea; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Mechanical vacuum feedthrough using gas lubricated guiding elements
Heidler, Nils; Gossel, Marcus; Risse, Stefan; Eberhardt, Ramona; Schenk, Christoph
Conference Paper
2012New approach to fabrication of a Faraday isolator for high power laser applications
Rothhardt, Carolin; Rekas, Miroslaw; Kalkowski, Gerhard; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012New Joining Technologies for High Stable and Smart Optical Systems
Eberhardt, Ramona; Kalkowski, Gerhard; Tünnermann, Andreas; Beckert, Erik; Böhme, Steffen
Conference Paper
2012Over 200 W average power tunable Raman amplifier based on fused silica step index fiber
Rekas, Miroslaw; Schmidt, Oliver; Zimer, Hagen; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Journal Article
2012Overview of the laser activities at Rheinmetall Waffe Munition
Ludewigt, Klaus; Riesbeck, Thomas; Schünemann, B.; Graf, A.; Jung, Markus; Schreiber, Thomas; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Precisely assembled multi deflection arrays - key components for multi shaped beam lithography
Mohaupt, Matthias; Beckert, Erik; Burkhardt, Thomas; Hornaff, Marcel; Damm, Christoph; Eberhardt, Ramona; Tünnermann, Andreas; Döring, Hans-Joachim; Reimer, Klaus
Conference Paper
2012Precision assembly of a miniaturized wire deflector for electron-beam lithography
Risse, Stefan; Damm, Christoph; Hornaff, Marcel; Kamm, Andreas; Mohaupt, Matthias; Eberhardt, Ramona; Schmidt, Ingo; Ramm, Roland; Kühmstedt, Peter; Notni, Gunther; Döring, Hans-Joachim; Elster, Thomas; Kirschstein, Ulf Carsten; Schenk, Christoph
Conference Paper, Journal Article
2012Solder joining of a miniaturized laser on a multi-material smart platform
Burkhardt, Thomas; Beckert, Erik; Hornaff, Marcel; Thiele, Julia; Burkhardt, Diana; Galan, Miguel; Gilaberte, Marta; Ferrando, Sergi; Montes, David; Ribes, Pol; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Static and dynamic behavior of all inkjet-printed piezoelectric polymer actuators for use in microfluidic systems
Pabst, Oliver; Perelaer, Jolke; Beckert, Erik; Schubert, Ulrich S.; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Successful fabrication of polymer based low voltage electrostatic actuators
Lange, Nicolas; Wippermann, Frank; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Thermo-mechanical properties of a deformable mirror with screen printed actuator
Bruchmann, Claudia; Appelfelder, Michael; Beckert, Erik; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Ultraviolet LED multi-chip module based on ceramic substrate
Burkhardt, Thomas; Hornaff, Marcel; Acker, Anne; Peschel, Thomas; Becker, Erik; Suphan, Karl-Heinz; Mensel, Karsten; Jirak, Stephan; Eberhardt, Ramona; Tünnermann, Andreas
Conference Paper
2012Welding of transparent materials with ultrashort laser pulses
Richter, Sören; Döring, Sven; Zimmermann, Felix; Lescieux, Ludovic; Eberhardt, Ramona; Nolte, Stefan; Tünnermann, Andreas
Conference Paper