| Download | - View final version: Optical fibre-based single photon source using InAsP quantum dot nanowires and gradient-index lens collection (PDF, 1.7 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1038/s41598-021-02287-y |
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| Author | Search for: Northeast, David B.1; Search for: Dalacu, Dan2; Search for: Weber, John F.2; Search for: Phoenix, Jason1; Search for: Lapointe, Jean2; Search for: Aers, Geof C.1; Search for: Poole, Philip J.2; Search for: Williams, Robin L.1 |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
- National Research Council of Canada. Advanced Electronics and Photonics
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| Format | Text, Article |
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| Subject | quantum optics; single photons and quantum effects |
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| Abstract | We present a compact, fibre-coupled single photon source using gradient-index (GRIN) lenses and an InAsP semiconductor quantum dot embedded within an InP photonic nanowire waveguide. A GRIN lens assembly is used to collect photons close to the tip of the nanowire, coupling the light immediately into a single mode optical fibre. The system provides a stable, high brightness source of fibre-coupled single photons. Using pulsed excitation, we demonstrate on-demand operation with a single photon purity of 98.5% when exciting at saturation in a device with a source-fibre collection efficiency of 35% and an overall single photon collection efficiency of 10%. We also demonstrate “plug and play” operation using room temperature photoluminescence from the InP nanowire for room temperature alignment. |
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| Publication date | 2021-11-24 |
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| Publisher | Nature Research |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 1726a7d0-6599-4c7d-b7e2-0cf72d82dc27 |
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| Record created | 2022-02-18 |
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| Record modified | 2022-02-24 |
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