Fig. 1. Optical path diagram of chirped pulse regeneration amplification and pulse compression system

Fig. 2. Average output power of regenerative amplifier (with uncompressed pulses) and spot radius. (a) Average output power versus pump power with spot shape shown in lower right inset; (b) spot radius under highest output power; (c) power stability

Fig. 3. Spectrum, pulse width, and spot after pulse compression. (a) Spectrum; (b) pulse width; (c) spot radius; (d) laser spot