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

Evan Meyer-Scott, Audrey Dot, Raja Ahmad, Lizhu Li, Martin Rochette, Thomas Jennewein
2015 Applied Physics Letters  

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2015 pre-print arXiv:1501.03532v1 fatcat:mfu3o5hitbaingt3yg4pb77wae

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2015 accepted
arXiv:1501.03532v2 fatcat:ifg32lowgnb2je2tstglf2fb5y
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±0.07 for degenerate pumping with 3.2 μW average power, and 1.33±0.03 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
more » ... e entangled states, heralding of single photons after lossy transmission, and photonic quantum information processing with nonlinear optics.
doi:10.1063/1.4913743 fatcat:3n3t7fuxpfd7vk66nnurtzwule
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Evan Meyer-Scott, Audrey Dot, Raja Ahmad, Lizhu Li, Martin Rochette, Thomas Jennewein. "Power-efficient production of photon pairs in a tapered chalcogenide microwire." Applied Physics Letters 106.8 (2015) 081111