Fig. 1. Schematic diagram of the experimental device

Fig. 2. The output power of continuous laser varies with the absorption pump power

Fig. 3. The average output power of the mode-locking laser versus the absorbed pump power

Fig. 4. The Q-switched pulse repetition rate and pulse width versus the absorbed pump power

Fig. 5. The CW and mode-locked laser spectrogram

Fig. 6. The Q-switched mode-locked pulse trains in nanosecond and microsecond time scales, respectively

Fig. 7. Repetition frequency and pulse width of the mode-locked pulse