C
Cesar Jauregui
Researcher at University of Jena
Publications - 286
Citations - 7407
Cesar Jauregui is an academic researcher from University of Jena. The author has contributed to research in topics: Fiber laser & Photonic-crystal fiber. The author has an hindex of 44, co-authored 254 publications receiving 6277 citations. Previous affiliations of Cesar Jauregui include Helmholtz Institute Jena & University of Cantabria.
Papers
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Journal ArticleDOI
High-power fibre lasers
Cesar Jauregui,Jens Limpert,Jens Limpert,Jens Limpert,Andreas Tünnermann,Andreas Tünnermann,Andreas Tünnermann +6 more
TL;DR: An overview of the state of the art in the field can be found in this paper, where the authors discuss present challenges and the future outlook of high-power fiber laser applications.
Journal ArticleDOI
Experimental observations of the threshold-like onset of mode instabilities in high power fiber amplifiers
Tino Eidam,Christian Wirth,Cesar Jauregui,Fabian Stutzki,Florian Jansen,Hans-Jürgen Otto,O. Schmidt,Thomas Schreiber,Jens Limpert,Andreas Tünnermann +9 more
TL;DR: The observation and experimental characterization of a threshold-like onset of mode instabilities, i.e. an apparently random relative power content change of different transverse modes, occurring in originally single-mode high-power fiber amplifiers is reported.
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Yb-doped large-pitch fibres: effective single-mode operation based on higher-order mode delocalisation
Jens Limpert,Jens Limpert,Jens Limpert,Fabian Stutzki,Florian Jansen,Hans-Jürgen Otto,Tino Eidam,Tino Eidam,Cesar Jauregui,Andreas Tünnermann,Andreas Tünnermann,Andreas Tünnermann +11 more
TL;DR: Limpert et al. as mentioned in this paper used a large-pitch photonic-crystal fiber doped with ytterbium to provide gain and achieved state-of-the-art performance.
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Fiber chirped-pulse amplification system emitting 3.8 GW peak power.
Tino Eidam,Jan Rothhardt,Fabian Stutzki,Florian Jansen,Steffen Hädrich,Henning Carstens,Cesar Jauregui,Jens Limpert,Andreas Tünnermann +8 more
TL;DR: A fiber chirped- pulse amplification system capable of generating nearly transform-limited sub 500 fs pulses with 2.2 mJ pulse energy at 11 W average power and a record peak power of 3.8 GW could be achieved by combining active phase shaping with an efficient reduction of the acquired nonlinear phase.
Journal ArticleDOI
Temporal dynamics of mode instabilities in high-power fiber lasers and amplifiers
Hans-Jürgen Otto,Fabian Stutzki,Florian Jansen,Tino Eidam,Cesar Jauregui,Jens Limpert,Andreas Tünnermann +6 more
TL;DR: The temporal dynamics show a transition zone between the stable and the unstable regimes where well-defined periodic temporal fluctuations on ms-timescale can be observed and support the thermal origin of mode instabilities.