High average power nonlinear compression to 4 GW, sub-50 fs pulses at 2 µm wavelength.
Opt Lett
; 42(4): 747-750, 2017 Feb 15.
Article
en En
| MEDLINE
| ID: mdl-28198855
ABSTRACT
The combination of high-repetition-rate ultrafast thulium-doped fiber laser systems and gas-based nonlinear pulse compression in waveguides offers promising opportunities for the development of high-performance few-cycle laser sources at 2 µm wavelength. In this Letter, we report on a nonlinear pulse compression stage delivering 252 µJ, sub-50 fs-pulses at 15.4 W of average power. This performance level was enabled by actively mitigating ultrashort pulse propagation effects induced by the presence of water vapor absorptions.
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2017
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