1.
Opt Lett
; 38(11): 1960-2, 2013 Jun 01.
Artículo
en Inglés
| MEDLINE
| ID: mdl-23722803
RESUMEN
We report the experimental generation of polarization-entangled photons at telecommunication wavelengths using spontaneous four-wave mixing in silicon-on-insulator wire waveguides. The key component is a 2D coupler that transforms path entanglement into polarization entanglement at the output of the device. Using quantum state tomography we find that the produced state has fidelity 88% with a pure nonmaximally entangled state. The produced state violates the CHSH Bell inequality by S=2.37 ± 0.19.