Eight-fold signal amplification of a superconducting nanowire single-photon detector using a multiple-avalanche architecture

Superconducting nanowire avalanche single-photon detectors (SNAPs) with n parallel nanowires are advantageous over single-nanowire detectors because their output signal amplitude scales linearly with n. However, the SNAP architecture has not been viably demonstrated for n > 4. To increase n for l...

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Bibliographic Details
Published in:Optics express 2014-10, Vol.22 (20), p.24574-24581
Main Authors: Zhao, Qingyuan, McCaughan, Adam N, Dane, Andrew E, Najafi, Faraz, Bellei, Francesco, De Fazio, Domenico, Sunter, Kristen A, Ivry, Yachin, Berggren, Karl K
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Language:English
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Summary:Superconducting nanowire avalanche single-photon detectors (SNAPs) with n parallel nanowires are advantageous over single-nanowire detectors because their output signal amplitude scales linearly with n. However, the SNAP architecture has not been viably demonstrated for n > 4. To increase n for larger signal amplification, we designed a multi-stage, successive-avalanche architecture which used nanowires, connected via choke inductors in a binary-tree layout. We demonstrated an avalanche detector with n = 8 parallel nanowires and achieved eight-fold signal amplification, with a timing jitter of 54 ps.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.22.024574