TY - JOUR T1 - Experimental Verification of Heralded Single Photon Generation by Second Order Degree of Coherence TT - JF - ijop JO - ijop VL - 16 IS - 2 UR - http://ijop.ir/article-1-506-en.html Y1 - 2022 SP - 145 EP - 152 KW - Spontaneous parametric down-conversion KW - Heralded Single Photon KW - Second-order degree of coherence. N2 - This paper describes the second-order coherence degree of photons produced in SPDC. First, the nonlinear BBO crystal generates the twin correlated signal and idler photons in the experimental setup. Then, g2 (0) is obtained experimentally via Hanbury Brown-Twiss set-up for investigation of the light source nature. The results show this value is less than 1 which verifies the generated photons are in the heralded single photon (HSP) regime. M3 10.52547/ijop.16.2.145 ER -