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Paper detail

Waveguide photon-number-resolving detectors for quantum photonic integrated circuits

Quantum photonic integration circuits are a promising approach to scalable quantum processing with photons. Waveguide single-photon-detectors (WSPDs) based on superconducting nanowires have been recently shown to be compatible with single-photon sources for a monolithic integration. While standard WSPDs offer single-photon sensitivity, more complex superconducting nanowire structures can be configured to have photon-number-resolving capability. In this work, we present waveguide photon-number-resolving detectors (WPNRDs) on GaAs/Al0.75Ga0.25As ridge waveguides based on a series connection of nanowires. The detection of 0-4 photons has been demonstrated with a four-wire WPNRD, having a single electrical read-out. A device quantum efficiency ~24 % is reported at 1310 nm for the TE polarization.

preprint2013arXivOpen access
D. SahinA. GaggeroZ. ZhouS. JahanmirinejadF. MattioliR. LeoniJ. BeetzM. LermerM. KampS. HöflingA. Fiore
physics.opticsquant-ph
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D. SahinA. GaggeroZ. ZhouS. JahanmirinejadF. MattioliR. LeoniJ. BeetzM. LermerM. KampS. HöflingA. Fiore

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