Fig. 1. MZM-based linearization scheme for intensity modulation direct detection microwave photonic links (MPLs). (a) Schematic diagram of scheme; (b) flow chart of linearization algorithm

Fig. 2. Spectra before and after linearization. (a) Signal A before linearization; (b) signal A after linearization; (c) signal B before linearization; (d) signal B after linearization

Fig. 3. Variation of power of fundamental frequency signal and power of XMD term with input power before and after linearization. (a) Signal A; (b) signal B

Fig. 4. Spurious-free dynamic range (SFDR) of broadband MPL systems with IMD3 suppression. (a) Power of input signal A; (b) power of input signal B

Fig. 5. Spectra of signal A before and after linearization. (a) Before linearization; (b) after linearization

Fig. 6. Output spectra and constellation diagrams of single-carrier OFDM signals before and after linearization. (a) Before linearization;(b) after linearization

Fig. 7. Output spectra and constellation diagrams of multi-carrier OFDM signals before and after linearization. (a) Before linearization; (b) after linearization

Fig. 8. EVM curves for multi-carrier OFDM signals with different input Vpp. (a) Back-to-back; (b) 20 km optical fiber