Development of reliable photon number resolving detectors (PNRD), devices which are capable to distinguish 1,2,3.. photons, is of a great importance for quantum optics and its applications. A new class of affordable PNRD is based on multipixel photon counters (MPPC). Here we review results of experiments on using MPPCs for direct characterization of squeezed vacuum (SV) states, generated via parametric downconversion (PDC). We use MPPCs to measure the second order normalized intensity correlation function (g^(2)) and directly detect the two-mode squeezing of SV states. We also present a method of calibration of crosstalk probability in MPPCs based on g^(2) measurements of coherent states.
@article{arxiv.1408.0059,
title = {Measurement of photon correlations with multipixel photon counters},
author = {Dmitry Kalashnikov and Leonid A. Krivitsky},
journal= {arXiv preprint arXiv:1408.0059},
year = {2015}
}
Comments
Review of our recent experimental results on using multipixel photon counters (MPPC) for characterization of various quantum states of light