Fig. 1. Coherent synthesis of two Gaussian pulses. (a) Parent pulse envelopes; (b) coherently synthesized pulse, product of temporal envelopes of parent pulses, modulation function, and no modulation part

Fig. 2. Effect of parent pulse on synthesized pulse. (a)(b) Ideal situation; (c)(d) parent pulse with chirp; (e)(f) low power ratio of modulation part; (g)(h) over width of parent pulse

Fig. 3. Effects of r and β on η_s when parent pulses are Gaussian pulses

Fig. 4. Schematic of coherent pulse synthesis system

Fig. 5. Autocorrelation traces and spectra of parent pulses. (a) Autocorrelation trace of output pulse from NL1050; (b) spectrum of output pulse from NL1050; (c) autocorrelation trace of output pulse from SC975; (d) spectrum of output pulse from SC975

Fig. 6. Evolution of autocorrelation trace of synthesized pulse with time delay between two parent pulses

Fig. 7. Coherent synthesis result of parent pulses. (a) Fringe-resolved autocorrelation trace of synthesized pulse; (b) spectrum of synthesized pulse

Fig. 8. Effect of energy ratio of two parent pulses on synthesized pulse. (a) 1.2∶1; (b) 1∶1; (c) 0.7∶1; (d) 0.4∶1

Fig. 9. Effect of parent pulse duration on synthesized pulse (inset is stretched parent pulse). (a) 32 fs; (b) 41 fs

Fig. 10. Parent pulses and result of pulse coherent synthesis when product of temporal envelopes of parent pulses is larger than π/Δω. (a) Autocorrelation trace of output pulse from NL1050; (b) autocorrelation trace of output pulse from SC975; (c) spectra of parent pulses and synthesized pulses; (d) electric field envelope and phase of synthesized pulse