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Opt Express. 2012 Oct 8;20(21):23100-7. doi: 10.1364/OE.20.023100.

Ultra-low power generation of twin photons in a compact silicon ring resonator.

Author information

1
Dipartimento di Fisica, Università degli Studi di Pavia, via Bassi 6, Pavia, Italy.

Abstract

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.

PMID:
23188274
[Indexed for MEDLINE]

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