Fig. 1. Schematic of the experimental setup

Fig. 2. Pulse trains under different pump powers. (a) 1.0 μm pulse trains; (b) 1.5 μm pulse trains

Fig. 3. Optical spectra and corresponding frequency spectra of 1.0 μm and 1.5 μm pulses. (a) Optical spectrum of 1.0 μm pulses; (b) optical spectrum of 1.5 μm pulses; (c) frequency spectrum of 1.0 μm pulses; (d) frequency spectrum of 1.5 μm pulses

Fig. 4. Curves of pulse width and single pulse energy at 1.0 μm and 1.5 μm versus the incident pump power

Fig. 5. Output pulse trains from the common branch when pump power is 544 mW. (a) 1.0 μm single pulse; (b) 1.5 μm single pulse

Fig. 6. Output pulse trains from the common branch when pump power is 623 mW. (a) 1.0 μm and 1.5 μm pulses combined optical spectrum; (b) 1.0 μm pulse train; (c) 1.5 μm pulse train