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Reducing multi-photon rates in pulsed down-conversion by temporal multiplexing
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DOI：10.1364/OE.19.022698.png)
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We present a simple technique to reduce the emission rate of higher-order photon events from pulsed spontaneous parametric down-conversion. The technique uses extra-cavity control over a mode locked ultrafast laser to simultaneously increase repetition rate and reduce the energy of each pulse from the pump beam. We apply our scheme to a photonic quantum gate, showing improvements in the non-classical interference visibility for 2-photon and 4-photon experiments, and in the quantum-gate fidelity and entangled state production in the 2-photon case. (C) 2011 Optical Society of America
Keyword:
SINGLE PHOTONS
QUANTUM-DOT
期刊
IF:
3.3
论文数:
6.1W
被引数:
14.3W
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