Fig. 1. Schematic diagram of an electro-optic frequency comb based on multifrequency small-signal phase modulation

Fig. 2. Schematic diagram of the beat frequency of electro-optic dual-comb

Fig. 3. Experimental setup diagram for eletro-optic dual-comb

Fig. 4. Time domain of single-period interferogram of dual-comb

Fig. 5. Frequency domain of the interferogram of dual-comb

Fig. 6. Part spectrum of frequency domain of the interferogram

Fig. 7. Measurement of H¹³C¹⁴N gas P9 absorption peak. (a) Measurement and fitting curve; (b) residual

Fig. 8. Measurement of H¹³C¹⁴N gas P10 absorption peak. (a) Measurement and fitting curve; (b) residual