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

作者:Azzini Stefano*; Grassani Davide; Strain Michael J; Sorel Marc; Helt L G; Sipe J E; Liscidini Marco; Galli Matteo; Bajoni Daniele
来源:Optics Express, 2012, 20(21): 23100-23107.
DOI:10.1364/OE.20.023100

摘要

We demonstrate efficient generation of correlated photon pairs by spontaneous four wave mixing in a 5 mu m radius silicon ring resonator in the telecom band around 1550 nm. By optically pumping our device with a 200 mu W 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.

  • 出版日期2012-10-8