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A passively Q-switched mode-locked (QML) Tm:LiLuF 4 (LLF) laser with a MoS 2 saturable absorber (SA) is demonstrated for the first time, to our best knowledge.For the Q-switching mode, the maximum average output power and Q-switched pulse energy are 583 mW and 41.5 μJ, respectively.When the absorbed power is greater than 7.4 W, the passively QML pulse is formed, corresponding to an 83.3-MHz frequency.The modulation depth in Q-switching envelopes is approximately 50%.Results prove that MoS 2 is a promising SA for Q-switched and QML solid-state lasers.
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Zou et al. (2015) studied this question.
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