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This research presents a deterministic single-photon source achieving over 500 MHz of in-fibre flux, addressing the critical need for high-rate quantum light generation in advanced optical technologies. By combining high excitation rates with system efficiency, this breakthrough facilitates scalable integration of quantum components into practical networks and computing architectures. The ability to measure fiber efficiency directly with standard powermeters further simplifies deployment and characterization protocols for quantum hardware developers.

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A photonic source with half-a-GHz single-photon flux

arXivSeptember 7, 20261 min read

arXiv:2609.05387v1 Announce Type: new Abstract: Advanced optical quantum technologies demands high quality quantum light generation at very high rates. Here, we report on a deterministic single-photon source that simultaneously combines high excitation rates with high system efficiency to reach over 500 MHz of in-fibre single-photon flux. The source delivers optical power of over 100 pW, as is measured with an off-the-shelf powermeter, enabling a simple and direct way of determining the single-photon source fiber efficiency.

Authors:P. Zahalka, S. Huijser, A. Pancaldi, S. Kruger, X. Zhao, Z. Liu, I. Suleiman, R. Jensen, L. Stefan, A. Ludwig, V. Remesh, J. C. Loredo, P. Lodahl

Abstract:Advanced optical quantum technologies demands high quality quantum light generation at very high rates. Here, we report on a deterministic single-photon source that simultaneously combines high excitation rates with high system efficiency to reach over 500 MHz of in-fibre single-photon flux. The source delivers optical power of over 100 pW, as is measured with an off-the-shelf powermeter, enabling a simple and direct way of determining the single-photon source fiber efficiency.

Quantum Physics (quant-ph); Mesoscale and Nanoscale Physics (cond-mat.mes-hall)

arXiv:2609.05387 [quant-ph]

(or arXiv:2609.05387v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2609.05387 arXiv-issued DOI via DataCite (pending registration)

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