Towards photostatistics from photon-number discriminating detectors

Hwang Lee, Ulvi Yurtsever, Pieter Kok, George M. Hockney, Christoph Adami, Samuel L. Braunstein, and Jonathan P. Dowling

Journal of Modern Optics 51, 1517-1528 (2004)

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We study the properties of a photodetector that has a number-resolving capability. In the absence of dark counts, due to its finite quantum efficiency, photodetection with such a detector can only eliminate the possibility that the incident field corresponds to a number of photons less than the detected photon number. We show that such a non-photon number-discriminating detector, however, provides a useful tool in the reconstruction of the photon number distribution of the incident field even in the presence of dark counts.

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