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Proceedings Paper

High-accuracy calibration of photon-counting detectors
Author(s): Sergey V. Polyakov; Michael Ware; Alan Migdall
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Paper Abstract

We discuss a practical implementation of a photon-counting detector calibration using correlated photon pairs produced by parametric down-conversion. In this calibration scheme, the detection of a first photon triggers the measurement sequence aimed at detection of a second photon by a detector under test (DUT). We also describe measurements of radiant power with a photon-counting detector, which is important for implementation of a conventional calibration technique based on detector substitution. In the experiment, we obtain a time-delay histogram of DUT detection events consisting of a correlated signal and a background. We present a method for separating the correlated signal from the background signal that appropriately handles complex properties of typical avalanche photodiode (APD) detectors. Also discussed are measurements of relevant APD properties, including count-rate-dependent afterpulsing, delayed (by up to 10 ns) electronic detections and deadtime effects. We show that understanding of these is essential to perform an accurate calibration.

Paper Details

Date Published: 25 October 2006
PDF: 12 pages
Proc. SPIE 6372, Advanced Photon Counting Techniques, 63720J (25 October 2006); doi: 10.1117/12.685248
Show Author Affiliations
Sergey V. Polyakov, National Institute of Standards and Technology (United States)
Univ. of Maryland, College Park (United States)
Michael Ware, Brigham Young Univ. (United States)
Alan Migdall, National Institute of Standards and Technology (United States)
Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 6372:
Advanced Photon Counting Techniques
Wolfgang Becker, Editor(s)

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