Fig. 1. Schematic of the system

Fig. 2. Coefficient of sidebands. (a) θ=0; (b) θ=π/8

Fig. 3. Optical signal spectrograms. (a) m=1.7005; (b) m=3.9033

Fig. 4. Maximum frequency multiplication coefficient Mmax. (a) Different dispersive values; (b) different radio frequencies

Fig. 5. Phase-coded signal with a frequency of 32 GHz. (a) Signal waveform; (b) phase information

Fig. 6. Phase-coded signal with a frequency of 19.2 GHz. (a) Signal waveform; (b) phase information

Fig. 7. Phase-coded signal with a time width of 52 ns. (a) Signal waveform; (b) autocorrelation function