arXiv:1106.3593
Slow-light Enhanced Correlated Photon-Pair Generation in Silicon
Chi Xiong, Christelle Monat, Alex S. Clark, Christian Grillet, Graham D. Marshall, Michael J. Steel, Juntao Li, Liam O’Faoláin, Thomas F. Krauss, John Rarity, Benjamin J. Eggleton
Abstract
We report the generation of correlated photon pairs in the telecom C-band, at room temperature, from a dispersion-engineered silicon photonic crystal waveguide. The spontaneous four-wave mixing process producing the photon pairs is enhanced by slow-light propagation enabling an active device length of less than 100 μm. With a coincidence to accidental ratio of 12.8, at a pair generation rate of 0.006 per pulse, this ultra-compact photon pair source is immediately applicable towards scalable quantum information processing realized on-chip.