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Calibrating Photon-Counting Detectors to High Accuracy: Background and Deadtime Issues

Published

Author(s)

Michael Ware, Alan L. Migdall, Joshua Bienfang, Sergey Polyakov

Abstract

When photon-counting detectors are calibrated in the presence of a background signal, deadtime effects can be significant and must be carefully accounted for to achieve high accuracy. We present a method for separating the correlated signal from the background signal that appropriately handles deadtime effects. This method includes consideration of pulse timing and afterpulsing issues that arise in typical avalanche photo diode (APD) detectors. We illustrate how these effects should be accounted for in the calibration process. We also discuss detector timing issues that should be considered in detector calibration.
Citation
Journal of Modern Optics
Volume
54

Keywords

avalanche photodiode, calibration, correlated photon, deadtime, metrology, parametric downconversion, photon, photon-counting

Citation

Ware, M. , Migdall, A. , Bienfang, J. and Polyakov, S. (2007), Calibrating Photon-Counting Detectors to High Accuracy: Background and Deadtime Issues, Journal of Modern Optics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=841009 (Accessed May 20, 2024)

Issues

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Created January 19, 2007, Updated October 12, 2021