Fig. 1. (a) Experimental setup of the all-fiber, self-starting Yb-doped MO. (b) The transmission spectra of BPF 1 and BPF 2.

Fig. 2. (a) Optical spectra with 0.02 nm resolution bandwidth (RBW). (b) Pulse trains. (c) RF spectra with 200 Hz RBW; inset: RF spectra with 10 kHz RBW. (d) Autocorrelation traces.

Fig. 3. Numerical results of (a) linear spectra and (b) autocorrelation traces.

Fig. 4. (a) Optical spectra with 0.02 nm RBW. (b) RF spectra with 200 Hz RBW.

Fig. 5. The evolution of the (a) spectra, (b) 3 dB bandwidth and pulse width, and (c) average output power during the gradual increase of the pump power of LD1 from 260.8 to 750 mW.

Fig. 6. (a) Optical spectra with the resolution of 0.02 nm; inset: optical spectra with 1.5 nm wavelength range. (b) Pulse trains. (c) RF spectra with 200 Hz RBW; inset: RF spectra with 10 kHz RBW. (d) Autocorrelation traces.

Fig. 7. The autocorrelation traces of (a) three-pulse, (b) four-pulse, (c) five-pulse, (d) six-pulse, (e) seven-pulse, and (f) eight-pulse bound states.

Fig. 8. (a) Optical spectra with the resolution of 0.02 nm; inset: optical spectra with 1.5 nm wavelength range. (b) Pulse trains. (c) RF spectra with 200 Hz RBW; inset: RF spectra with 10 kHz RBW. (d) Autocorrelation traces.