Fig. 1. Schematic of polarization-entangled quantum photon source

Fig. 2. Practical map of polarization-entangled quantum photon source. (a) Top view; (b) front view; (c) cable and TTL level output

Fig. 3. Performance test of electronic system. (a) Test signal; (b) output signal of high-speed photoelectric detector

Fig. 4. Test of frequency division

Fig. 5. Test of delay

Fig. 6. TCAR versus monitor power

Fig. 7. Single channel photon count rate and coincidence count rate versus relative angle. (a) Single channel photon count rate; (b) coincidence count rate