Energy correlations of photon pairs generated by a silicon microring resonator probed by Stimulated Four Wave Mixing
Author(s)Grassani, Davide; Simbula, Angelica; Pirotta, Stefano; Galli, Matteo; Menotti, Matteo; Harris, Nicholas Christopher; Baehr-Jones, Tom; Hochberg, Michael; Galland, Christophe; Liscidini, Marco; Bajoni, Daniele; ... Show more Show less
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Compact silicon integrated devices, such as micro-ring resonators, have recently been demonstrated as efficient sources of quantum correlated photon pairs. The mass production of integrated devices demands the implementation of fast and reliable techniques to monitor the device performances. In the case of time-energy correlations, this is particularly challenging, as it requires high spectral resolution that is not currently achievable in coincidence measurements. Here we reconstruct the joint spectral density of photons pairs generated by spontaneous four-wave mixing in a silicon ring resonator by studying the corresponding stimulated process, namely stimulated four wave mixing. We show that this approach, featuring high spectral resolution and short measurement times, allows one to discriminate between nearly-uncorrelated and highly-correlated photon pairs.
DepartmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Grassani, Davide, Angelica Simbula, Stefano Pirotta, Matteo Galli, Matteo Menotti, Nicholas C. Harris, Tom Baehr-Jones, Michael Hochberg, Christophe Galland, Marco Liscidini, and Daniele Bajoni. "Energy correlations of photon pairs generated by a silicon microring resonator probed by Stimulated Four Wave Mixing." Scientific Reports 6, Article number:23564 (April 2016).
Final published version