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arXiv · 1904.05278

Dual-Pump Approach to Photon-Pair Generation: Demonstration of Enhanced Characterization and Engineering Capabilities

Yujie Zhang·Ryan Spiniolas·Kai Shinbrough·Bin Fang·Offir Cohen·V. O. Lorenz
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Abstract

We experimentally study the generation of photon pairs via spontaneous four-wave mixing with two distinct laser pulses. We find that the dual-pump technique enables new capabilities: 1) a new characterization methodology to measure noise contributions, source brightness and photon collection efficiencies directly from raw photon-count measurements; 2) an enhanced ability to generate heralded single photons in a pure quantum state; and 3) the ability to derive upper and lower bounds on heralded-photon quantum state purity from measurements of photon-number statistics even in the presence of noise. Such features are highly valuable in photon-pair sources for quantum applications.

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Yujie Zhang, Ryan Spiniolas, Kai Shinbrough, Bin Fang, Offir Cohen, V. O. Lorenz. 2019-04-10. Dual-Pump Approach to Photon-Pair Generation: Demonstration of Enhanced Characterization and Engineering Capabilities. https://doi.org/10.1364/oe.27.019050

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