Fig. 1. High-speed information protection transmission system based on optical quantum noise encryption

Fig. 2. Encryption principle of high-speed information protection transmission system based on optical quantum noise. (a) Encrypted waveform; (b) encrypted eye diagram

Fig. 3. Structure of synchronization frame

Fig. 4. Modulated electric waveform. (a) Eye diagram with base number 2; (b) eye diagram with base number 128

Fig. 5. Relationship curve between β and success rate of synchronization

Fig. 6. Relationship curve between α and success rate of synchronization

Fig. 7. Relationship curve between γ and bit error rate of demodulating information

Fig. 8. Bit error rate after synchronization