Uncorrelated photon pair generation from an integrated silicon nitride resonator measured by time resolved coincidence detection

Abstract

We measure the joint temporal intensity of signal and idler photon pairs generated by spontaneous four wave mixing in a silicon nitride microresonator by time-resolved coincidence detection. This technique can be applied to any high-Q optical cavity whose photon lifetime exceeds the duration of the pump pulse. We tailor the temporal correlation of photon pairs by using a resonant interferometric coupler, a device that allows us to independently tune the quality factors of the pump and signal and idler resonances.Temporal post-selection is used to accurately measure the temporal emission of the device, demonstrating a purity of 98.67(1)%.

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• Probing multimode squeezing with correlation functions
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• A manufacturable platform for photonic quantum computing
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Cited by in corpus (7)

• On-chip frequency-bin quantum photonics
• Selective linewidth control in a micro-resonator with a resonant interferometric coupler
• From broadband biphotons to frequency combs via spectral compression with time-varying cavities
• Quantum interference with time-frequency modes and multiple-photons generated by a silicon nitride microresonator
• Time-resolved certification of frequency-bin entanglement over multi-mode channels
• Gigahertz-rate thin-film lithium niobate receiver for time-bin quantum communication
• Time-resolved characterization of pulsed squeezed light from a strongly driven silicon nitride microresonator