High quality asynchronous heralded single photon source at telecom wavelength

Abstract

We report on the experimental realization and characterization of an asynchronous heralded single photon source based on spontaneous parametric down conversion. Photons at 1550nm are heralded as being inside a single-mode fiber with more than 60% probability, and the multi-photon emission probability is reduced by up to a factor 600 compared to poissonian light sources. These figures of merit, together with the choice of telecom wavelength for the heralded photons are compatible with practical applications needing very efficient and robust single photon sources.

7 pages, 8 figures

References in corpus (6)

• Quantum Cryptography
• Single Photons on Pseudo-Demand from Stored Parametric Down-Conversion
• Long distance entanglement based quantum key distribution
• Direct Measurement of the Photon Statistics of a Triggered Single Photon Source
• Quantum key distribution over 30km of standard fiber using energy-time entangled photon pairs: a comparison of two chromatic dispersion reduction methods
• Photon Statistics of a Non-Stationary Periodically Driven Single-Photon Source

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