Fig. 1. Diagram of the experimental setup for photon correlation measurements of chaotic light fields

Fig. 2. Principle of TDC measurement

Fig. 3. Multichannel photon-arrival-time measurement circuit architecture

Fig. 4. CARRY4 internal structure diagram

Fig. 5. Artix-7 internal TDC distribution

Fig. 6. Delay-unit delay time statistics for different programmes. (a) Programme I; (b) programme II

Fig. 7. Ones-counter encoder with a pipeline structure

Fig. 8. Histogram showing total delay time and delay-unit quantity

Fig. 9. Physical diagram of TDC accuracy test system

Fig. 10. Accuracy versus time interval

Fig. 11. Precision measurement results of 8-channel

Fig. 12. TDC precision variations over temperature

Fig. 13. DNL and INL graphs. (a) Mode 1; (b) mode 0

Fig. 14. Multichannel photon-arrival-time measurement device

Fig. 15. Multichannel photon-arrival-time histogram