Tino EidamSummaryAffiliation: Friedrich Schiller University Country: Germany Publications
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Femtosecond fiber CPA system emitting 830 W average output powerTino Eidam
Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
Opt Lett 35:94-6. 2010..Additionally, we discuss further a scaling potential toward and beyond the kilowatt level by overcoming the current scaling limitations imposed by the transversal spatial hole burning...- Experimental observations of the threshold-like onset of mode instabilities in high power fiber amplifiersTino Eidam
Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
Opt Express 19:13218-24. 2011..Although the physical origin of this effect is not yet fully understood, we discuss possible explanations. Accordingly, several solutions are proposed in this paper to raise the threshold of this effect... - Preferential gain photonic-crystal fiber for mode stabilization at high average powersTino Eidam
Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
Opt Express 19:8656-61. 2011..In a chirped-pulse amplification system we extracted up to 303 W of average power from this fiber with a measured M2 value of 1.4... - Fiber chirped-pulse amplification system emitting 3.8 GW peak powerTino Eidam
Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
Opt Express 19:255-60. 2011..8 GW could be achieved by combining active phase shaping with an efficient reduction of the acquired nonlinear phase. Therefore, we used an Ytterbium-doped large-pitch fiber with a mode field diameter of 105 µm as the main amplifier... - Temperature-induced index gratings and their impact on mode instabilities in high-power fiber laser systemsCesar Jauregui
Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
Opt Express 20:440-51. 2012..The relevance of such gratings in the context of the recently observed mode instabilities of high-power fiber laser systems is discussed... - 135 W average-power femtosecond pulses at 520 nm from a frequency-doubled fiber laser systemJan Rothhardt
Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
Opt Lett 36:316-8. 2011..2. To our knowledge, the system presented here is the highest average power green laser source generating femtosecond pulses with diffraction-limited beam quality... - Temporal dynamics of mode instabilities in high-power fiber lasers and amplifiersHans Jürgen Otto
Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Albert Einstein Str 15, 07745 Jena, Germany
Opt Express 20:15710-22. 2012..Finally, it is experimentally shown that the larger the mode-field area, the slower the mode-instability fluctuation is. The observations support the thermal origin of mode instabilities... - Physical origin of mode instabilities in high-power fiber laser systemsCesar Jauregui
Friedrich Schiller Universitat Jena, Institute of Applied Physics, Abbe Center of Photonics, Albert Einstein Str 15, 07745 Jena, Germany
Opt Express 20:12912-25. 2012..As it is discussed in the paper, this description of mode instabilities can explain many of the experimental observations reported to date... 
Thermally induced waveguide changes in active fibersFlorian Jansen
Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Albert Einstein Str 15, 07745 Jena, Germany
Opt Express 20:3997-4008. 2012..Furthermore, the strength of the actual index change is experimentally estimated, and its use to overcome avoided crossings is discussed and experimentally demonstrated...- High average power large-pitch fiber amplifier with robust single-mode operationFabian Stutzki
Friedrich Schiller University Jena, Institute of Applied Physics, Jena, Germany
Opt Lett 36:689-91. 2011..Compared to previous active large-mode area designs, the threshold of mode instabilities is increased by a factor of about 3... - Sub 25 fs pulses from solid-core nonlinear compression stage at 250 W of average powerChristoph Jocher
Institute of Applied Physics, Abbe Center of Photonics, Friedrich Schiller Universitat Jena, Jena, Germany
Opt Lett 37:4407-9. 2012..9 μJ pulse energy and a peak power of 34 MW at 250 W of average power (M(2)=1.3). This system is well suited for driving cavity-enhanced high-repetition rate high-harmonic generation... - The impact of modal interference on the beam quality of high-power fiber amplifiersCesar Jauregui
Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Strasse 15, D 07745, Jena, Germany
Opt Express 19:3258-71. 2011..According to the model presented in this paper, the most likely cause for the beam quality degradation is an inversion-induced grating created by the interplay between modal interference along the fiber and transversal hole burning... - Nonlinear compression of Q-switched laser pulses to the realm of ultrashort durationsAlexander Steinmetz
Friedrich Schiller University Jena, Institute of Applied Physics, Albert Einstein Str 15, 07745 Jena, Germany
Opt Express 19:3758-64. 2011..68 nm by self-phase modulation. These pulses are compressed in a grating compressor to a duration of 6 ps with a pulse energy of 13 µJ... - Circular versus linear polarization in laser-amplifiers with Kerr-nonlinearityDamian N Schimpf
Institute of Applied Physics, Friedrich Schiller University Jena, Albert Einstein Str 15, D 07745 Jena, Germany
Opt Express 17:18774-81. 2009..In laser-amplifiers circularly polarized light reduces the detrimental impact of the Kerr-nonlinearity, and thus, increases the peak-power and the self-focussing threshold...