Scalable cryogenic readout circuit for a superconducting nanowire single-photon detector system.

Journal Article (Journal Article)

The superconducting nanowire single-photon detector (SNSPD) is a leading technology for quantum information science applications using photons, and is finding increasing uses in photon-starved classical imaging applications. Critical detector characteristics, such as timing resolution (jitter), reset time, and maximum count rate, are heavily influenced by the readout electronics that sense and amplify the photon detection signal. We describe a readout circuit for SNSPDs using commercial off-the-shelf amplifiers operating at cryogenic temperatures. Our design demonstrates a 35 ps timing resolution and a maximum count rate of over 2 × 107 counts per second, while maintaining <3 mW power consumption per channel, making it suitable for a multichannel readout.

Full Text

Duke Authors

Cited Authors

  • Cahall, C; Gauthier, DJ; Kim, J

Published Date

  • June 2018

Published In

Volume / Issue

  • 89 / 6

Start / End Page

  • 063117 -

PubMed ID

  • 29960551

Electronic International Standard Serial Number (EISSN)

  • 1089-7623

International Standard Serial Number (ISSN)

  • 0034-6748

Digital Object Identifier (DOI)

  • 10.1063/1.5018179


  • eng