Linear-Optic Heralded Photon Source

Abstract

We present a Heralded Photon Source based only on linear optics and weak coherent states. By time-tuning a Hong-Ou-Mandel interferometer fed with frequency-displaced coherent states, the output photons can be synchronously heralded following sub-Poisson statistics, which is indicated by the second-order correlation function ($g^2\left(0\right)=0.556$). The absence of phase-matching restrictions makes the source widely tunable, with 100-nm spectral tunability on the telecom bands. The technique presents yield comparable to state-of-the-art spontaneous parametric down-conversion-based sources, with high coherence and fiber-optic quantum communication compatibility.

9 pages, 7 figures

References in corpus (6)

• Quantum key distribution over 122 km of standard telecom fiber
• Quantum Beat of Two Single Photons
• High quality asynchronous heralded single photon source at telecom wavelength
• High coherence photon pair source for quantum communication
• A source of polarization-entangled photon pairs interfacing quantum memories with telecom photons
• Spectral characterization of weak coherent state sources based on two-photon interference

Cited by in corpus (4)

• Assessing the performance of quantum repeaters for all phase-insensitive Gaussian bosonic channels
• Limits on manipulating conditional photon statistics via interference of weak lasers
• Complementarity Analysis of Interference between Frequency-Displaced Photonic Wave-Packets
• Sub-Poisson States Heralded at a Hong-Ou-Mandel Interference Peak