Fig. 1. Block diagram of all-optical OR gate

Fig. 2. Effect of MZM extinction ratio on the Q value and extinction ratio of the system

Fig. 3. Time-domain waveforms of input signal

Fig. 4. Time domain waveform of OR logic

Fig. 5. Eye diagram of OR logic

Fig. 6. Diagram of all-optical 8-3 line encoder

Fig. 7. Time domain waveforms of D1~D7 of all-optical 8-3 line encoder

Fig. 8. Time domain waveforms of 3-bit binary code A、B and C of all-optical 8-3 line encoder

Fig. 9. Eye diagrams of 3-bit binary code A、B and C of all-optical 8-3 line encoder