Fig. 1. Experimental setup and laser parameters. (a) Erbium-doped fiber mode-locked laser; (b) erbium-doped fiber amplifier; (c) ytterbium-doped fiber mode-locked laser; (d) spectrum and pulse width of erbium-doped fiber mode-locked laser; (e) spectrum and pulse width of ytterbium-doped fiber mode-locked laser

Fig. 2. Experimental results. (a)-(c) Pulse width under different single pulse energies; (d) tolerance range under different single pulse energies; (e) mismatch length under different single pulse energies

Fig. 3. Synchronization in pulse splitting state. (a) Autocorrelation curve of splitting pulse; (b) tolerance range under different single pulse energies, where A-D are synchronous sequences with different tolerance ranges