Two-stage, low noise quantum frequency conversion of single photons from silicon-vacancy centers in diamond to the telecom C-band
| Autor: | Schäfer, Marlon, Kambs, Benjamin, Herrmann, Dennis, Bauer, Tobias, Becher, Christoph |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Adv. Quantum Technol.2023, 2300228 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1002/qute.202300228 |
| Popis: | The silicon-vacancy center in diamond holds great promise as a qubit for quantum communication networks. However, since the optical transitions are located within the visible red spectral region, quantum frequency conversion to low-loss telecommunication wavelengths becomes a necessity for its use in long-range, fiber-linked networks. This work presents a highly efficient, low-noise quantum frequency conversion device for photons emitted by a silicon-vacancy (SiV) center in diamond to the telecom C-band. By using a two-stage difference-frequency mixing scheme SPDC noise is circumvented and Raman noise is minimized, resulting in a very low noise rate of $10.4 \pm 0.7$ photons per second as well as an overall device efficiency of $35.6\, \%$. By converting single photons from SiV centers we demonstrate the preservation of photon statistics upon conversion. Comment: 12 pages, 3 figures |
| Databáze: | arXiv |
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