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

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.

Source: arXiv:2609.05387v1 - http://arxiv.org/abs/2609.05387v1 PDF: https://arxiv.org/pdf/2609.05387v1 Original Link: http://arxiv.org/abs/2609.05387v1