Impact of third-order dispersion on the generation of wave-breaking free pulses in ultrafast fiber lasers.
Wave-breaking free pulses generated in passively mode-locked fiber lasers can tolerate a certain cubic phase delay induced by third-order dispersion without losing pulse quality. We demonstrate that the spectral as well as the temporal profile of the pulses become asymmetric. The generated pulses had a pulse energy up to 3.5nJ and could be externally compressed down to 145fs. The fact that the pulses could always be dechirped within 10% of the Fourier limit points out the linearity of the chirp. The pulse asymmetry was also observed in the output coupling characteristic of the mode-locking mechanism.
Ruehl
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Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany. a.ruehl@lzh.de
Prochnow
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Schultz
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M
Wandt
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D
Kracht
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D