Fig. 1. Schematic of MPL based on dual-electrode modulator and balanced detection

Fig. 2. Simulation model of conventional MPL

Fig. 3. Simulation model of proposed linearized MPL

Fig. 4. RF frequency spectra of the link output. (a) Conventional quadrature biased MZM; (b) proposed linearized DEMZM scheme

Fig. 5. Output frequency spectra of linearized link. (a) Output frequency spectrum after PD1; (b) output frequency spectrum after BPD beat

Fig. 6. Output frequency spectra under different microwave frequencies. (a) 4 GHz and 5 GHz; (b) 20 GHz and 21 GHz

Fig. 7. Measured SFDR₃ and SFDR₅ of proposed linearized link

Fig. 8. SFDR₃ and SFDR₅ after beat frequency of PD1