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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
  • , Sven Höfling
  • , A. Fiore
  • *Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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 of similar to 24% is reported at 1310 nm for the transverse electric polarization. (C) 2013 AIP Publishing LLC.

Original languageEnglish
Article number111116
Number of pages5
JournalApplied Physics Letters
Volume103
Issue number11
DOIs
Publication statusPublished - 9 Sept 2013

Keywords

  • Photons
  • Nanowires
  • Superconducting detectors
  • Polarisation
  • Superconductivity

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