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A heralded single-photon source for quantum communications compatible with long-distance optical fibers

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4 Author(s)
Ferreira da Silva, T. ; Center for Telecommun. Studies, Pontifical Catholic Univ. of Rio de Janeiro, Rio de Janeiro, Brazil ; Pinheiro, T.R.P. ; Xavier, G.B. ; von der Weid, J.P.

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.

Published in:

Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International

Date of Conference:

3-6 Nov. 2009