Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock.
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.
Zhang
Qiang
Q
Xie
Xiuping
X
Takesue
Hiroki
H
Nam
Sae Woo
SW
Langrock
Carsten
C
Fejer
M M
MM
Yamamoto
Yoshihisa
Y