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

fYear

2011

fDate

27-29 April 2011

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

EUROCON - International Conference on Computer as a Tool (EUROCON), 2011 IEEE

Conference_Location

Lisbon

Print_ISBN

978-1-4244-7486-8

Type

conf

DOI

10.1109/EUROCON.2011.5929315

Filename

5929315