Fig. 1. Schematic of the MoS2-based LD-pumped passively Q-switched Tm∶YAG laser

Fig. 2. SEM of the MoS2 nanosheets

Fig. 3. Saturable absorption characteristics of MoS2 sample at 2 μm

Fig. 4. Evolution of the output power in CW regime

Fig. 5. (a) Evolution of the output power in Q-switching regime; (b) evolution of pulse width and pulse repetition

Fig. 6. Pulse train waveform and single pulse waveform at the maximum output power

Fig. 7. Spectrum of output laser