Fig. 1. Schematic of the divided burst-mode pulse amplification system. AM, amplitude modulation; SM, single mode; MM, multi mode; OSA, optical spectrum analyzer; PZT, piezoelectric ceramic; PD, photodiode.

Fig. 2. The output power curves of the main amplifier at different repetition rates.

Fig. 3. The output amplified burst pulse trains (a) without intensity modulation; (b) with intensity modulation.

Fig. 4. The amplification results of two polarization pulses. (a) and (b) Output powers; (c) and (d) pulse spectra.

Fig. 5. The compression results of two polarization pulses. (a) and (b) Pulse spectra; (c) and (d) autocorrelation traces.

Fig. 6. Characteristics of the combined pulse. (a) Pulse spectrum; (b) autocorrelation trace; (c) power stability (before compressing); (d) M² measurement for both x and y axes.