Generation of 10-GHz clock sequential time-bin entanglement

Qiang Zhang, Carsten Langrock, Hiroki Takesue, Xiuping Xie, Martin Fejer, Yoshihisa Yamamoto
2008 Optics Express  
This letter reports telecom-band sequential time-bin entangled photon-pair generation at a repetition rate of 10 GHz in periodically-poled reverse-proton-exchange lithium niobate waveguides based on mode demultiplexing. With up-conversion single-photon detectors, we observed a two-photon-interference-fringe visibility of 85.32% without subtraction of accidental noise contributions, which can find broad application in quantum information and quantum entanglement research.
doi:10.1364/oe.16.003293 pmid:18542417 fatcat:j3nc2wg2cnez5l7umx3vvx3naq