Sub-100 fs pulses from a low repetition rate Yb-doped fiber laser.
We report on a passively mode-locked ytterbium-doped fiber laser with a repetition rate of 1.8 MHz. The laser was hybridly mode-locked via nonlinear polarization evolution and a semiconductor saturable absorber mirror. It generated chirped 3.8 ps long pulses with a pulse energy of 1.0 nJ which could be dechirped to a pulse duration of 93 fs.
Sayinc
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Laser Zentrum Hannover eV, Hannover, Germany. h.sayinc@lzh.de
Mortag
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Wandt
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Neumann
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Kracht
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