Fig. 1. Layout of the four-outputs Nd∶glass pump source for 150 mm aperture Ti∶sapphire amplifier

Fig. 2. Layout of regenerative amplifier

Fig. 3. Layout of time-domain dual pulse pump

Fig. 4. Scheme of the combination of the same-polarization pump pulses

Fig. 5. Relationship of front-end input and final-end output

Fig. 6. Spatial evolutions of the pump source. (a) Front-end spot without amplification; (b) output spot without amplification;(c) output spot amplified by ?40 mm Nd∶glass rod amplifier; (d) output spot amplified by Nd∶glass rod amplifier chain

Fig. 7. Time-domain wavefront evolutions of the pump source. (a) In the regenerative amplifier; (b) regenerative amplifier output; (c) pre-amplifier output; (d) after ?40 mm Nd∶glass rod amplifier; (e) after ?80 mm Nd∶glass rod amplifier; (f) after beam combination pumped by time-domain dual-pulse