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Temporal Correlation of Photons Following Frequency Up-conversion



Lijun Ma, Matthew T. Rakher, Martin Stevens, Oliver T. Slattery, Kartik Srinivasan, Xiao Tang


We demonstrate an approach to measure temporal correlations of photons in the near infrared range using frequency up-conversion. In this approach, the near infrared signal photons are converted into the visible range, in which highly efficient silicon avalanche photodiodes are used to perform the temporal correlation measurements. A coherent light source and a pseudo-thermal light source were used in the experiment. The results are in agreement with theoretical values and those obtained from measurements directly made using superconducting nanowire single photon detectors. We conclude that the temporal correlation (up to 4th order) of photons was preserved in the frequency up-conversion process. We further theoretically and experimentally studied the influence of the dark counts on the measurement. The setup uses commercially available components and achieves high total detection efficiency (26%).
Optics Express


photon correlation, up-conversion detector, Poissonian distribution, Bose-Einstein distribution


Ma, L. , Rakher, M. , Stevens, M. , Slattery, O. , Srinivasan, K. and Tang, X. (2011), Temporal Correlation of Photons Following Frequency Up-conversion, Optics Express, [online], (Accessed February 26, 2024)
Created May 22, 2011, Updated October 12, 2021