Title :
Generation of time-energy entangled photons on a silicon chip
Author :
Grassani, Davide ; Azzini, Stefano ; Galli, Matteo ; Liscidini, M. ; Strain, Michael J. ; Sorel, Marc ; Sipe, John ; Bajoni, Daniele
Author_Institution :
Dipt. di Fis., Univ. degli Studi di di Pavia, Pavia, Italy
Abstract :
An integrated source of time-energy entangled photons is demonstrated through resonantly enhanced spontaneous four-wave mixing in a silicon micro-ring resonator. A Franson type set-up is employed to show the quantum interference between photon pairs with a visibility exceeding 90% and a violation of the Bell´s inequality by more than 10 standard deviations. The high spectral brightness and the extremely small footprint of our source make it suitable for the development of quantum information protocols integrated on chip.
Keywords :
Bell theorem; brightness; elemental semiconductors; integrated optics; micro-optics; microcavities; multiwave mixing; optical resonators; quantum entanglement; quantum interference phenomena; silicon; Bell´s inequality; Franson type set-up; high spectral brightness; quantum information protocols; quantum interference; resonantly enhanced spontaneous four-wave mixing; silicon chip; silicon microring resonator; time-energy entangled photon generation; visibility; Educational institutions; Interferometers; Laser excitation; Optical resonators; Optical waveguides; Photonics; Silicon; nonlinear integrated optics; quantum optics;
Conference_Titel :
Transparent Optical Networks (ICTON), 2014 16th International Conference on
Conference_Location :
Graz
DOI :
10.1109/ICTON.2014.6876328
