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arXiv · 1906.02258

Calibration of free-space and fiber-coupled single-photon detectors

Thomas Gerrits·Alan Migdall·Joshua C. Bienfang·John Lehman·Sae Woo Nam·Jolene Splett·Igor Vayshenker·Jack Wang
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Abstract

We measure the detection efficiency of single-photon detectors at wavelengths near 851 nm and 1533.6 nm. We investigate the spatial uniformity of one free-space-coupled single-photon avalanche diode and present a comparison between fusion-spliced and connectorized fiber-coupled single-photon detectors. We find that our expanded relative uncertainty for a single measurement of the detection efficiency is as low as 0.70 % for fiber-coupled measurements at 1533.6 nm and as high as 1.78 % for our free-space characterization at 851.7 nm. The detection-efficiency determination includes corrections for afterpulsing, dark count, and count-rate effects of the single-photon detector with the detection efficiency interpolated to operation at a specified detected count rate.

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Thomas Gerrits, Alan Migdall, Joshua C. Bienfang, John Lehman, Sae Woo Nam, Jolene Splett, Igor Vayshenker, Jack Wang. 2019-06-05. Calibration of free-space and fiber-coupled single-photon detectors. https://doi.org/10.1088/1681-7575/ab4533

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