10 GHz时带集成模解复用器的反向质子交换PPLN波导中相关光子对的产生
Correlated photon-pair generation in reverse-proton-exchange PPLN waveguides with integrated mode demultiplexer at 10 GHz clock
摘要：
我们报告了在1.5 μ m波长和10 GHz时钟下，在具有集成模式解复用器的双极化反向质子交换锂离子交换波导中产生10 ps相关光子对。使用超导单光子探测器，我们观察到的符合偶然计数比（CAR）高达4000。该光子对源在量子信息系统和量子纠缠实验中有着广泛的应用。
英文摘要：
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-um 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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