Experimental realization of a photon-number-resolving homodyne detector
Duan Huang, Erhu Han, Weiqi Liu, Dakai Lin, Chao Wang, Peng Huang, Guihua Zeng · 2014
We demonstrate a photon-number-resolving homodyne detector based on InGaAs PIN photodiodes with active phase compensation. Our detector preserves the capable of detecting single photon and allows 20 photons to be precisely discriminated.