Title :
Polarization-entangled photon pairs using spontaneous four-wave mixing in a fiber loop
Author :
Almeida, Álvaro J. ; Carneiro, Steven R. ; Silva, Nuno A. ; Muga, Nelson J. ; Pinto, Armando N.
Author_Institution :
Inst. de Telecomun., Aveiro, Portugal
Abstract :
We generate polarization-entangled photon pairs in the 1550-nm wavelength telecom band, using spontaneous four-wave mixing in a highly nonlinear fiber loop. With accidental coincidences subtracted, we obtain coincidence fringes with visibilities greater than 86%, and thus observe a violation of Clauser, Horne, Shimony and Holt (CHSH) inequality by 2.7 standard deviations. The experimental setup is built using only fiber connections, which contribute to its long time stability.
Keywords :
multiwave mixing; optical fibre networks; photon polarisation; quantum communication; CHSH inequality; Clauser Home Shimony and Holt inequality; HNLF; highly nonlinear fiber loop; polarization-entangled photon pair; spontaneous four-wave mixing; standard deviations; wavelength 1550 nm; wavelength telecom band; Arrayed waveguide gratings; Correlation; Nonlinear optics; Optical polarization; Optical pumping; Photonics; Quantum mechanics; Coincidence; Quantum entanglement; Sagnac fiber loop; Spontaneous four-wave mixing;
Conference_Titel :
EUROCON - International Conference on Computer as a Tool (EUROCON), 2011 IEEE
Conference_Location :
Lisbon
Print_ISBN :
978-1-4244-7486-8
DOI :
10.1109/EUROCON.2011.5929315
