Fig. 1. Schematic diagram of the broadband linearized MPL using SD-DPMZM

Fig. 2. Simulation model of the broadband linearized MPL using SD-DPMZM

Fig. 3. Simulated electrical spectrum after PD. (a) Conventional quadrature biased MZM; (b) proposed linearized SD-DPMZM scheme, two tone frequencies at 10 GHz and 10.01 GHz (ωn=2πfn,n=1,2)

Fig. 4. Simulation of IMD3 influencing factors in the system. (a) Ideal input; (b) the relationship between input phase and input power of two RF signals

Fig. 5. Simulation of FOH, IMD3 and SFDR influencing factors in the system. (a) Influence of phase deviation (D_phase) and bias voltage deviation (DVb) on FOH and IMD3; (b) influence of phase deviation and bias voltage deviation on SFDR; (c) influence of power difference on FOH and IMD3; (d) influence of the power difference on SFDR

Fig. 6. Measured electrical spectrum after PD, two tone frequencies at 10 GHz and 10.01 GHz. (a) Conventional quadrature biased MZM; linearized SD-DPMZM scheme: (b) 10 GHz and 10.01 GHz; (c) 10 GHz and 10.1 GHz; (d) 10 GHz and 10.2 GHz

Fig. 7. Measured SFDR of the SD-DPMZM and the conventional MZM, two tone frequencies at 10 GHz and 10.01 GHz

Fig. 8. Measured electrical spectrum and SFDR after PD. (a) (b) two tone frequencies at 16 GHz and 16.01 GHz; (c) (d) two tone frequencies at 18 GHz and 18.01 GHz

Fig. 9. Measurement SFDR of linearized MPL by changing the input phase of DPMZM