Fig. 1. Schematic diagram of M-Z lithium niobate amplitude modulator

Fig. 2. Broadband low-coherent light experimental service

Fig. 3. SLD light source spectrum

Fig. 4. The electrical pulse loaded on the amplitude modulator is compared with the output light pulse of the amplitude modulator

Fig. 5. Modulator output light spectra

Fig. 6. Relationship between bias voltage and output light power

Fig. 7. Relationship between modulator bias voltage and output electrical pulse

Fig. 8. Effect of modulator bias voltage on light intensity

Fig. 9. Spectra of output light with different modulator bias voltages

Fig. 10. Complex coherence curves of output optical pulses under different bias voltages when the RF coefficient of the modulator is 0.46

Fig. 11. Influence of AM bias voltage on the temporal coherence when the RF coefficient of the modulator is 0.46

Fig. 12. Complex coherence curves of output optical pulses with different RF coefficients when the bias voltage is 2.475 V