Waveguide photon-number-resolving detectors for quantum photonic integrated circuits
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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.
Sahin , D , Gaggero , A , Zhou , Z , Jahanmirinejad , S , Mattioli , F , Leoni , R , Beetz , J , Lermer , M , Kamp , M , Höfling , S & Fiore , A 2013 , ' Waveguide photon-number-resolving detectors for quantum photonic integrated circuits ' Applied Physics Letters , vol. 103 , no. 11 , 111116 . https://doi.org/10.1063/1.4820842
Applied Physics Letters
Copyright 2013, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters Vol 103, Issue 11, and may be found at: http://scitation.aip.org/content/aip/journal/apl/103/11/10.1063/1.4820842
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