Single-photon frequency down-conversion experiment

Journal Article · Thu Jul 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.013833· OSTI ID:21443027

Takesue, Hiroki ^[1]

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1. NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198 (Japan) and CREST, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan)

We report a single-photon frequency down-conversion experiment. Using the difference frequency generation process in a periodically poled lithium niobate waveguide, we successfully observed the phase-preserved frequency down-conversion of a coherent pulse train with an average photon number per pulse of <1, from the 0.7 {mu}m visible wavelength band to the 1.3 {mu}m telecom band. We expect this technology to become an important tool for flexible photonic quantum networking, including the realization of quantum repeater systems over optical fiber using atom-photon entanglement sources for the visible wavelength bands.

• OSTI ID: 21443027
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 82; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ALKALI METAL COMPOUNDS
ATOM COLLISIONS
ATOMS
BOSONS
COLLISIONS
CONVERSION
ELEMENTARY PARTICLES
FIBERS
LITHIUM COMPOUNDS
MASSLESS PARTICLES
NIOBATES
NIOBIUM COMPOUNDS
OPTICAL FIBERS
OXYGEN COMPOUNDS
PERIODICITY
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
PHOTONS
PULSES
QUANTUM ENTANGLEMENT
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VARIATIONS
WAVEGUIDES
WAVELENGTHS