Interference with a quantum dot single-photon source and a laser at telecom wavelength

Journal Article · Mon Sep 28 00:00:00 EDT 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4931729· OSTI ID:22482156

Felle, M. ^[1]; Stevenson, R. M.; Skiba-Szymanska, J.; Ward, M. B.; Shields, A. J. ^[1]; Farrer, I.; Ritchie, D. A. ^[2]; Penty, R. V. ^[3]

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1. Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Cambridge Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom)
2. Cavendish Laboratory, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)
3. Centre for Advanced Photonics and Electronics, University of Cambridge, J.J. Thomson Avenue, Cambridge CB3 0FA (United Kingdom)

The interference of photons emitted by dissimilar sources is an essential requirement for a wide range of photonic quantum information applications. Many of these applications are in quantum communications and need to operate at standard telecommunication wavelengths to minimize the impact of photon losses and be compatible with existing infrastructure. Here, we demonstrate for the first time the quantum interference of telecom-wavelength photons from an InAs/GaAs quantum dot single-photon source and a laser; an important step towards such applications. The results are in good agreement with a theoretical model, indicating a high degree of indistinguishability for the interfering photons.

• OSTI ID: 22482156
• Journal Information: Applied Physics Letters, Vol. 107, Issue 13; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALLIUM ARSENIDES
INDIUM ARSENIDES
INTERFERENCE
LASERS
LOSSES
PHOTONS
QUANTUM DOTS
QUANTUM INFORMATION
WAVELENGTHS