Absolute efficiency estimation of photon-number-resolving detectors using twin beams
A. P. Worsley, Hendrik B. Coldenstrodt-Ronge, Jeff S. Lundeen, Peter J. Mosley, Brian J. Smith, Graciana Puentes, Nicholas L. Thomas-Peter, Ian A. Walmsley · Optics Express · 2009
A nonclassical light source is used to demonstrate experimentally the absolute efficiency calibration of a photon-number-resolving detector. The photon-pair detector calibration method developed by Klyshko for single-photon detectors is generalized to take advantage of the higher dynamic range and additional information provided by photon-number-resolving detectors. This enables the use of brighter twin-beam sources including amplified pulse pumped sources, which increases the relevant signal and provides measurement redundancy, making the calibration more robust.