title: Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock.
abstract: We report 10-ps correlated photon pair generation in periodically-poled reverse-proton-exchange lithium niobate waveguides with integrated mode demultiplexer at a wavelength of 1.5-mum and a clock of 10 GHz. Using superconducting single photon detectors, we observed a coincidence to accidental count ratio (CAR) as high as 4000. The developed photon-pair source may find broad application in quantum information systems as well as quantum entanglement experiments.
authors: Qiang
authors: Q
authors: Zhang
authors: Xiuping
authors: X
authors: Xie
authors: Hiroki
authors: H
authors: Takesue
authors: Sae Woo
authors: SW
authors: Nam
authors: Carsten
authors: C
authors: Langrock
authors: M M
authors: MM
authors: Fejer
authors: Yoshihisa
authors: Y
authors: Yamamoto