Abstract

We experimentally demonstrated 45-fs soliton pulses from a diode-pumped passively mode-locked Yb:NaY(WO4)2 laser with a semiconductor saturable absorber mirror. The soliton pulses are centered at 1042 nm and have a repetition rate of $\sim 113$ MHz. To the best of our knowledge, this is the first demonstration of sub-50-fs soliton pulse generation from the Yb:NaY(WO4)2 lasers, and it is also the shortest pulses ever obtained from the Yb-doped tetragonal double tungstate crystal family until now.

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