NICT, in collaboration with the University of Electro-Communications (UEC, President: Dr. Takashi Fukuda), has succeeded in the demonstration of a twin photon source pumped by a 2.5 GHz repetition-rate-tunable frequency comb laser. This photon source has a 30 times higher signal-to-noise ratio and a better performance in quantum interference than the traditional photon source pumped by a 76 MHz laser. This experiment will contribute to further progress of quantum information and quantum communications technology.
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