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arXiv · 1501.03532

Power-efficient production of photon pairs in a tapered chalcogenide microwire

Evan Meyer-Scott·Audrey Dot·Raja Ahmad·Lizhu Li·Martin Rochette·Thomas Jennewein
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Abstract

Using tapered fibers of As2Se3 chalcogenide glass, we produce photon pairs at telecommunication wavelengths with low pump powers. We found maximum coincidences-to-accidentals ratios of $2.13\pm0.07$ for degenerate pumping with 3.2 μW average power, and $1.33\pm0.03$ for non-degenerate pumping with 1.0 μW and 1.5 μW average power of the two pumps. Our results show that the ultrahigh nonlinearity in these microwires could allow single-photon pumping to produce photon pairs, enabling the production of large entangled states, heralding of single photons after lossy transmission, and photonic quantum information processing with nonlinear optics.

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Evan Meyer-Scott, Audrey Dot, Raja Ahmad, Lizhu Li, Martin Rochette, Thomas Jennewein. 2015-02-25. Power-efficient production of photon pairs in a tapered chalcogenide microwire. https://doi.org/10.1063/1.4913743

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