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European Quantum Electronics Conference (EQEC)

1.3 μm on-demand single photon source for fibre systems

M. B. Ward, O. Z. Karimov, D. C. Unitt, Zhiliang L. Yuan, Patrick See, David Gevaux, Andrew J. Shields, P. Atkinson, D. A. Ritchie

Published Jan 18, 2006• 0 citations
Publisher

Abstract

We demonstrate the first on-demand single photon source at 1.3 m. The source is based on an InAs quantum dot embedded within a micro-pillar cavity structure. Correlation measurements demonstrate strong suppression of multi-photon emission.
DOI
10.1109/eqec.2005.1567433

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A highly pure and stable single-photon source is prepared that comprises a well-designed pillar array, in which each pillar contains only a few InAs quantum dots. A nano-pillar in this array is in direct contact with a fiber end surface and cooled in a liquid-He bath. Auto-correlation measurements show that this source provides an average g(2)(0) value of 0.0174 in the measured excitation-power range. This photon source and fiber coupling are quite rigid against external disturbances such as cooling-heating cycles and vibration, with long-term stability.
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