Pre-chirp managed nonlinear amplification in fibers delivering 100  W, 60  fs 
pulses

Liu, Wei; Schimpf, Damian N.; Eidam, Tino; Limpert, Jens; Tünnermann, Andreas; Kärtner, Franz X.; Chang, Guoqing

doi:10.1364/OL.40.000151

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Pre-chirp managed nonlinear amplification in fibers delivering 100 W, 60 fs pulses

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Liu, Wei
International Max Planck Research School for Ultrafast Imaging & Structural Dynamics (IMPRS-UFAST), Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science, DESY, Notkestraße 85, Hamburg 22607, Germany;
Physics Department, University of Hamburg, Luruper Chaussee 149, Hamburg 22761, Germany;

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http://dx.doi.org/10.1364/OL.40.000151
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Citation

Liu, W., Schimpf, D. N., Eidam, T., Limpert, J., Tünnermann, A., Kärtner, F. X., et al. (2015). Pre-chirp managed nonlinear amplification in fibers delivering 100 W, 60 fs pulses. Optics Letters, 40(2), 151-154. doi:10.1364/OL.40.000151.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002A-5F37-F

Abstract

We demonstrate a pre-chirp managed Yb-doped fiber laser system that outputs 75 MHz, 130 W spectrally broadened pulses, which are compressed by a diffraction-grating pair to 60 fs with average powers as high as 100 W. Fine tuning the pulse chirp prior to amplification leads to high-quality compressed pulses. Detailed experiments and numerical simulation reveal that the optimum pre-chirp group-delay dispersion increases from negative to positive with increasing output power for rod-type high-power fiber amplifiers. The resulting laser parameters are suitable for extreme nonlinear optics applications such as frequency conversion in femtosecond enhancement cavities.