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Twin Photon Pairs in a High-Q Silicon Microresonator

Steven D. Rogers, Xiyuan Lu, Wei Jiang, Qiang Lin

Published Jan 1, 2015• 0 citations
Publisher

Abstract

We report the generation of twin photon pairs in a high-Q silicon microdisk resonator. The device is able to produce pairs at a flux of 5.31 x 105 pairs/s within a bandwidth of 0.73 GHz, and a coincidence-to-accidental ratio as large as 155, the highest value reported to date for twin photon pairs.
DOI
10.1364/cleo_qels.2015.ftu1a.6

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We demonstrate efficient generation of correlated photon pairs by spontaneous four wave mixing in a 5 μm radius silicon ring resonator in the telecom band around 1550 nm. By optically pumping our device with a 200 μW continuous wave laser, we obtain a pair generation rate of 0.2 MHz and demonstrate photon time correlations with a coincidence-to-accidental ratio as high as 250. The results are in good agreement with theoretical predictions and show the potential of silicon micro-ring resonators as room temperature sources for integrated quantum optics applications.