Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2020Analysis of fabrication techniques and material systems for kW fibers limited by TMI
Haarlammert, N.; Kuhn, S.; Hupel, C.; Nold, J.; Schulze, S.; Möller, F.; Distler, V.; Strecker, M.; Palma-Vega, G.; Hein, S.; Häßner, D.; Walbaum, T.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2019High-power fiber laser materials: Influence of fabrication methods and codopants on optical properties
Kuhn, S.; Hein, S.; Hupel, C.; Nold, J.; Stutzki, F.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2019Ring-up-doped fiber for the generation of more than 600 W single-mode narrow-band output at 1018 nm
Palma-Vega, G.; Walbaum, T.; Heinzig, M.; Kuhn, S.; Hupel, C.; Hein, S.; Feldkamp, G.; Sattler, B.; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Journal Article
2019Single-mode propagation with 205μm mode-field diameter in a passive large pitch fiber
Steinkopff, A.; Jauregui, C.; Stutzki, F.; Nold, J.; Hupel, C.; Haarlammert, N.; Bierlich, J.; Tünnermann, A.; Limpert, J.
Conference Paper
2019Transverse single-mode operation in a passive large pitch fiber with more than 200  μm mode-field diameter
Steinkopff, A.; Jauregui, C.; Stutzki, F.; Nold, J.; Hupel, C.; Haarlammert, N.; Bierlich, J.; Tünnermann, A.; Limpert, J.
Journal Article
2019Two-step-model of photosensitivity in cerium-doped fibers
Elsmann, T.; Becker, M.; Olusoji, O.; Unger, S.; Wondraczek, K.; Aichele, C.; Lindner, F.; Schwuchow, A.; Nold, J.; Rothhardt, M.
Journal Article
2018Active materials for high-power fiber lasers prepared by all-solution doping technique
Kuhn, S.; Möller, F.; Hupel, C.; Hein, S.; Beier, F.; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2018Experimental investigations on the TMI thresholds of low-NA Yb-doped single-mode fibers
Beier, F.; Möller, F.; Sattler, B.; Nold, J.; Liem, A.; Hupel, C.; Kuhn, S.; Hein, S.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Journal Article
2018Fabrication of longitudinally arbitrary shaped fiber tapers
Nold, J.; Plötner, M.; Böhme, S.; Sattler, B.; Vries, O. de; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2018Modelling the refractive index behavior of Al,P-doped SiO2, fabricated by means of all-solution doping, in the vicinity of Al:P = 1:1
Kuhn, S.; Hein, S.; Hupel, C.; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Journal Article
2017All-solution doping technique for high power fiber lasers - refractive index influence in the vicinity of Al:P = 1:1
Kuhn, S.; Hein, S.; Hupel, C.; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2017kW-class fiber laser prepared using an alternative solution doping MCVD-technique
Kuhn, S.; Hupel, C.; Hein, S.; Beier, F.; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2017Modal content measurements (S2) of negative curvature hollow-core photonic crystal fibers
Bock, V.; Plötner, M.; Vries, O. de; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Journal Article
2017Single mode 4.3 kW output power from a diode-pumped Yb-doped fiber amplifier
Beier, F.; Hupel, C.; Kuhn, S.; Hein, S.; Nold, J.; Proske, F.; Sattler, B.; Liem, A.; Jauregui, C.; Limpert, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Journal Article
2017Single mode low-NA step index Yb-doped fiber design for output powers beyond 4kW
Beier, F.; Proske, F.; Hupel, C.; Kuhn, S.; Hein, S.; Sattler, B.; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2017TMI investigations of very low NA Yb-doped fibers and scaling to extreme stable 4.4 kW single-mode output
Beier, F.; Möller, F.; Nold, J.; Sattler, B.; Kuhn, S.; Hupel, C.; Hein, S.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2016Modal content analysis of hollow core Kagome fibers
Plötner, M.; Vries, O. de; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2016Narrow linewidth, single mode 3 kW average power from a directly diode pumped ytterbium-doped low NA fiber amplifier
Beier, F.; Hupel, C.; Nold, J.; Kuhn, S.; Hein, S.; Ihring, J.; Sattler, B.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Journal Article
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
2015All-solution doping technique for tailoring core composition toward Yb:AlPO4:SiO2
Kuhn, S.; Hein, S.; Hupel, C.; Ihring, J.; Nold, J.; Haarlammert, N.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2015Efficient Raman frequency conversion of high-power fiber lasers in diamond
Williams, R.J.; Nold, Johannes; Strecker, M.; Kitzler, O.; McKay, A.; Schreiber, Thomas; Mildren, R.P.
Journal Article
2015In situ temperature measurement in high power fiber amplifiers
Beier, F.; Heinzig, M.; Haarlammert, N.; Nold, J.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2015Investigations of mode instabilities in low-NA reduced mode overlap photonic crystal fibers
Haarlammert, N.; Sattler, B.; Liem, A.; Strecker, M.; Nold, J.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.; Ludewigt, K.; Jung, M.
Conference Paper
2015MCVD based fabrication of low-NA fibers for high power fiber laser application
Hupel, C.; Kuhn, S.; Hein, S.; Haarlammert, N.; Nold, J.; Beier, F.; Sattler, B.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
Conference Paper
2015Narrow linewidth single mode fiber amplifier with 2.3 kw average power
Nold, J.; Strecker, M.; Liem, A.; Eberhardt, R.; Schreiber, T.; Tünnermann, A.
Conference Paper
2015Optimized Yb-doped fibers and joining technology for efficient end pumped monolithic high power fiber oscillators
Liem, A.; Haarlammert, N.; Matzdorf, C.; Nold, J.; Kuhn, S.; Kido, L.; Reichel, V.; Schreiber, T.; Eberhardt, R.; Tünnermann, A.
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
2001Generative Entwicklung informationslogistischer Anwendungen
Busse, S.; Goldbeck, G.; Lozano, N.; Nold, J.; Sigel, W.
Report