Number-state reconstruction with a single SPAD

Patrick R. Banner; Deniz Kurdak; Yaxin Li; Alan Migdall; J. V. Porto; S. L. Rolston

doi:10.1117/12.3008269

13 March 2024 Number-state reconstruction with a single SPAD

Patrick R. Banner, Deniz Kurdak, Yaxin Li, Alan Migdall, J. V. Porto, S. L. Rolston

Proceedings Volume 12912, Quantum Sensing, Imaging, and Precision Metrology II; 129120O (2024) https://doi.org/10.1117/12.3008269
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

Single-photon avalanche detectors (SPADs) are used ubiquitously in optical and quantum science, but they are not photon-number-resolving detectors. Despite this, in this work we present preliminary results that show that a single SPAD can still be used to perform number-state reconstruction. Through detector characterization and use of maximum-likelihood analysis, we perform number-state reconstruction with a single SPAD and obtain good agreement with independently measured distributions for both Poissonian and anti-bunched light. Our method works well for photon rates up to roughly one input photon per dead time as well as pulse lengths and correlation times of at least a few dead times, fitting many of today’s quantum optics experiments.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Patrick R. Banner, Deniz Kurdak, Yaxin Li, Alan Migdall, J. V. Porto, and S. L. Rolston "Number-state reconstruction with a single SPAD", Proc. SPIE 12912, Quantum Sensing, Imaging, and Precision Metrology II, 129120O (13 March 2024); https://doi.org/10.1117/12.3008269

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