High-visibility two-photon interference at a telecom wavelength using picosecond-regime separated sources

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.021801· OSTI ID:21413248

Aboussouan, Pierre; Alibart, Olivier; Ostrowsky, Daniel B; Baldi, Pascal; Tanzilli, Sebastien ^[1]

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1. Laboratoire de Physique de la Matiere Condensee, CNRS UMR 6622, Universite de Nice - Sophia Antipolis, Parc Valrose, F-06108 Nice Cedex 2 (France)

We report on a two-photon interference experiment in a quantum relay configuration using two picosecond regime periodically poled lithium niobate (PPLN) waveguide based sources emitting paired photons at 1550 nm. The results show that the picosecond regime associated with a guided-wave scheme should have important repercussions for quantum relay implementations in real conditions, essential for improving both the working distance and the efficiency of quantum cryptography and networking systems. In contrast to already reported regimes, namely, femtosecond and CW, it allows achieving a 99% net visibility two-photon interference while maintaining a high effective photon pair rate using only standard telecom components and detectors.

• OSTI ID: 21413248
• Journal Information: Physical Review. A, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevA.81.021801; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EFFICIENCY
INTERFERENCE
LITHIUM
NIOBATES
PERIODICITY
PHOTONS
QUANTUM CRYPTOGRAPHY
WAVEGUIDES
WAVELENGTHS
ALKALI METALS
BOSONS
CRYPTOGRAPHY
ELEMENTARY PARTICLES
ELEMENTS
MASSLESS PARTICLES
METALS
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VARIATIONS