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arXiv · 0801.0328

Fiber based source of photon pairs at telecom band with high temporal coherence and brightness for quantum information processing

Xiaoying Li·Lei Yang·Liang Cui·Zhe Yu Ou·Daoyin Yu
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Abstract

We experimentally demonstrate a bright pulsed source of correlated photon pairs at 1550 nm telecom band by pumping 300 m dispersion shifted fiber with a 4 ps pulse train. We investigate the coherence property of the source by measuring the second order intensity correlation function $g^{(2)}$ of individual signal (idler) photons. A preliminary Hong-Ou-Mandel type two-photon interference experiment with two such sources confirms the high temporal and spatial coherence of the source. The source is suitable for multi-photon quantum interference of independent sources, required in quantum information processing.

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Xiaoying Li, Lei Yang, Liang Cui, Zhe Yu Ou, Daoyin Yu. 2008-01-02. Fiber based source of photon pairs at telecom band with high temporal coherence and brightness for quantum information processing. https://doi.org/10.1364/ol.33.000593

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