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. Hoefling, A. Fiore

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

67 Citations (Scopus)


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
Issue number11
Publication statusPublished - 9 Sept 2013


  • photon detectors
  • integrated nanophotonics


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