A compact Einstein–Podolsky–Rosen entangled light source
Wang Ya-Jun, Yang Wen-Hai, Zheng Yao-Hui†, Peng Kun-Chi
       
The measured entangled light noise powers of (a) amplitude sum and (b) phase difference at 2 MHz: (i) shot noise limit, (ii) correlation noise, (iii) electronics noise. The RBW and VBW of spectrum analyzer are 39 kHz and 30 Hz, respectively.