Fig. 1. Schematic illustration of the dispersion-managed fiber laser cavity, the letters A-E represents SMF1, YDF, SMF2, SESAM, and CFBG in turn. OC: output coupler, DCF: dispersion compensating fiber

Fig. 2. (a) The output maximum spectral width, the maximum pump strength, and B-integral versus the length of SMF1. Inset: The auto correlation trace of dechirped pulse when the SMF1 length is 0.1 m; (b)-(c) The evolution of the spectral width and the pulse duration in the cavity; (d) Evolution of pulse spectrum with the number of round trips; (e)-(f)the spectral width and the pulse duration evolve with the number of round trips

Fig. 3. (a) The output maximum spectral width, the maximum pump strength, and B-integral versus the length of SMF1. Inset: The auto correlation trace of dechirped pulse when the SMF1 length is 0.1 m; (b)-(c) The evolution of the spectral width and the pulse duration in the cavity; (d) Evolution of pulse spectrum with the number of round trips; (e)-(f) the spectral width and the pulse duration evolve with the number of round trips

Fig. 4. (a) The output maximum spectral width, the maximum pump strength and B-integral versus the length of SMF1; (b)-(c) The evolution of the spectral width and the pulse duration in the cavity

Fig. 5. (a) the maximum spectral width, the maximum pump strength and B-integral versus the length of SMF1; (b)-(c) the evolution of the spectral width and the pulse duration in the cavity

Fig. 5. [in Chinese]

Fig. 6. The maximum spectral width in the cavity under the same pump strength with different NCDs. Inset (a)-(b) two different evolutions of the spectral width and the pulse duration in the cavity