Dongxu LIU, Xiaonan YU, Shoufeng TONG, Tong WANG. Key Technologies of Laser Communication Based on Single Photon Detection and Pulse Position Modulation[J]. Acta Photonica Sinica, 2021, 50(3): 40
- Acta Photonica Sinica
- Vol. 50, Issue 3, 40 (2021)
Fig. 1. Block diagram of InGaAs/InP Gm-APD part
Fig. 2. APD single photon detection timing diagram
Fig. 3. The simulation relationship curve of time slot error rate and signal-to-noise ratio under different k values
Fig. 4. PPM modulation flow chart
Fig. 5. PPM modulation simulation diagram
Fig. 6. PPM demodulation flowchart
Fig. 7. PPM demodulation simulation diagram
Fig. 8. Overall block diagram of the communication system
Fig. 9. Physical map of the communication system
Fig. 10. The relationship between PPM synchronization trigger delay time and bit error rate
Fig. 11. Relation curve of gate width and bit error rate
Fig. 12. Dead time and bit error rate relationship curve
Fig. 13. The relationship between received optical power and bit error rate under different code rates
Fig. 14. The relationship between modulation rate and sensitivity under different detection efficiency
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