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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 27 — Dec. 17, 2012
  • pp: 28683–28697

Orthogonal sequencing multiplexer for superconducting nanowire single-photon detectors with RSFQ electronics readout circuit

Matthias Hofherr, Olaf Wetzstein, Sonja Engert, Thomas Ortlepp, Benjamin Berg, Konstantin Ilin, Dagmar Henrich, Ronny Stolz, Hannes Toepfer, Hans-Georg Meyer, and Michael Siegel  »View Author Affiliations

Optics Express, Vol. 20, Issue 27, pp. 28683-28697 (2012)

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We propose an efficient multiplexing technique for superconducting nanowire single-photon detectors based on an orthogonal detector bias switching method enabling the extraction of the average count rate of a set of detectors by one readout line. We implemented a system prototype where the SNSPDs are connected to an integrated cryogenic readout and a pulse merger system based on rapid single flux quantum (RSFQ) electronics. We discuss the general scalability of this concept, analyze the environmental requirements which define the resolvability and the accuracy and demonstrate the feasibility of this approach with experimental results for a SNSPD array with four pixels.

© 2012 OSA

OCIS Codes
(030.5260) Coherence and statistical optics : Photon counting
(040.0040) Detectors : Detectors
(040.1240) Detectors : Arrays
(100.0100) Image processing : Image processing
(270.5570) Quantum optics : Quantum detectors

ToC Category:

Original Manuscript: August 21, 2012
Revised Manuscript: November 14, 2012
Manuscript Accepted: November 20, 2012
Published: December 10, 2012

Matthias Hofherr, Olaf Wetzstein, Sonja Engert, Thomas Ortlepp, Benjamin Berg, Konstantin Ilin, Dagmar Henrich, Ronny Stolz, Hannes Toepfer, Hans-Georg Meyer, and Michael Siegel, "Orthogonal sequencing multiplexer for superconducting nanowire single-photon detectors with RSFQ electronics readout circuit," Opt. Express 20, 28683-28697 (2012)

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