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arXiv · 1308.4606

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

D. Sahin·A. Gaggero·Z. Zhou·S. Jahanmirinejad·F. Mattioli·R. Leoni·J. Beetz·M. Lermer·M. Kamp·S. Höfling·A. Fiore
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Abstract

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.

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D. Sahin, A. Gaggero, Z. Zhou, S. Jahanmirinejad, F. Mattioli, R. Leoni, J. Beetz, M. Lermer, M. Kamp, S. Höfling, A. Fiore. 2013-08-21. Waveguide photon-number-resolving detectors for quantum photonic integrated circuits. https://doi.org/10.1063/1.4820842

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