High-throughput quantum photonic devices emitting indistinguishable photons in the telecom C-band
| Autor: | Holewa, Paweł, Vajner, Daniel A., Zięba-Ostój, Emilia, Wasiluk, Maja, Gaál, Benedek, Sakanas, Aurimas, Burakowski, Marek, Mrowiński, Paweł, Krajnik, Bartosz, Xiong, Meng, Yvind, Kresten, Gregersen, Niels, Musiał, Anna, Huck, Alexander, Heindel, Tobias, Syperek, Marcin, Semenova, Elizaveta |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Nature Communications 15, 3358 (2024) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/s41467-024-47551-7 |
| Popis: | Single indistinguishable photons at telecom C-band wavelengths are essential for quantum networks and the future quantum internet. However, high-throughput technology for single-photon generation at 1550 nm remained a missing building block to overcome present limitations in quantum communication and information technologies. Here, we demonstrate the high-throughput fabrication of quantum-photonic integrated devices operating at C-band wavelengths based on epitaxial semiconductor quantum dots. Our technique enables the deterministic integration of single pre-selected quantum emitters into microcavities based on circular Bragg gratings. Respective devices feature the triggered generation of single photons with ultra-high purity and record-high photon indistinguishability. Further improvements in yield and coherence properties will pave the way for implementing single-photon non-linear devices and advanced quantum networks at telecom wavelengths. Comment: 10 pages, 4 figures, Supplemental Material: 23 pages, 21 figures |
| Databáze: | arXiv |
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