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

• URL: http://arxiv.org/abs/2406.12476v1
• Date: Tue, 18 Jun 2024 10:28:19 GMT
• Title: Uncorrelated photon pair generation from an integrated silicon nitride resonator measured by time resolved coincidence detection
• Authors: Massimo Borghi, Paula Lujan Pagano, Marco Liscidini, Daniele Bajoni, Matteo Galli,
• Abstract summary: We measure the joint temporal intensity of signal and idler photon pairs generated by spontaneous four wave mixing in a silicon nitride microresonator. This technique can be applied to any high-Q optical cavity whose photon lifetime exceeds the duration of the pump pulse.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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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