Title :
A heralded single-photon source for quantum communications compatible with long-distance optical fibers
Author :
Da Silva, T. Ferreira ; Pinheiro, T.R.P. ; Xavier, G.B. ; von der Weid, J.P.
Author_Institution :
Center for Telecommun. Studies, Pontifical Catholic Univ. of Rio de Janeiro, Rio de Janeiro, Brazil
Abstract :
This paper reports the implementation of a heralded single-photon source for quantum communications. Pump photons are parametric down-converted into pairs of photons at 810 and 1550 nm inside a non-linear crystal. The former acts as a heralding signal to the telecom wavelength photon. The temporal correlation between the photons is measured, as well as the compromise between source visibility and maximum achievable transmission distance.
Keywords :
optical fibre communication; optical frequency conversion; quantum communication; quantum optics; heralded single-photon source; heralding signal; long-distance optical fibers; maximum achievable transmission distance; nonlinear crystal; pump photons; quantum communications; source visibility; telecom wavelength photon; temporal correlation; wavelength 1550 nm; wavelength 810 nm; Optical fibers; optical fibers; quantum communications; single-photon sources;
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International
Conference_Location :
Belem
Print_ISBN :
978-1-4244-5356-6
Electronic_ISBN :
1679-4389
DOI :
10.1109/IMOC.2009.5427488
