Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock
by: Qiang Zhang, Xiuping Xie, Hiroki Takesue, Sae W. Nam, Carsten Langrock, M. M. Fejer, Yoshihisa Yamamoto
Opt. Express, Vol. 15, No. 16. (6 August 2007), pp. 10288-10293, doi:10.1364/oe.15.010288 Key: citeulike:9268336
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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-μm 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.
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