A thin film lithium niobate near-infrared platform for multiplexing quantum nodes
Abstract Practical quantum networks will require multi-qubit quantum nodes. This in turn will increase the complexity of the photonic circuits needed to control each qubit and require strategies to multiplex memories. Integrated photonics operating at visible to near-infrared (VNIR) wavelength range...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-12-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54541-2 |
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| _version_ | 1846136972046761984 |
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| author | Daniel Assumpcao Dylan Renaud Aida Baradari Beibei Zeng Chawina De-Eknamkul C. J. Xin Amirhassan Shams-Ansari David Barton Bartholomeus Machielse Marko Loncar |
| author_facet | Daniel Assumpcao Dylan Renaud Aida Baradari Beibei Zeng Chawina De-Eknamkul C. J. Xin Amirhassan Shams-Ansari David Barton Bartholomeus Machielse Marko Loncar |
| author_sort | Daniel Assumpcao |
| collection | DOAJ |
| description | Abstract Practical quantum networks will require multi-qubit quantum nodes. This in turn will increase the complexity of the photonic circuits needed to control each qubit and require strategies to multiplex memories. Integrated photonics operating at visible to near-infrared (VNIR) wavelength range can provide solutions to these needs. In this work, we realize a VNIR thin-film lithium niobate (TFLN) integrated photonics platform with the key components to meet these requirements, including low-loss couplers (<1 dB/facet), switches (>20 dB extinction), and high-bandwidth electro-optic modulators (>50 GHz). With these devices, we demonstrate high-efficiency and CW-compatible frequency shifting (>50% efficiency at 15 GHz), as well as simultaneous laser amplitude and frequency control. Finally, we highlight an architecture for multiplexing quantum memories and outline how this platform can enable a 2-order of magnitude improvement in entanglement rates over single memory nodes. Our results demonstrate that TFLN can meet the necessary performance and scalability benchmarks to enable large-scale quantum nodes. |
| format | Article |
| id | doaj-art-3a474a717a3740c6a0c54f00dcfd17d4 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-3a474a717a3740c6a0c54f00dcfd17d42024-12-08T12:35:22ZengNature PortfolioNature Communications2041-17232024-12-011511910.1038/s41467-024-54541-2A thin film lithium niobate near-infrared platform for multiplexing quantum nodesDaniel Assumpcao0Dylan Renaud1Aida Baradari2Beibei Zeng3Chawina De-Eknamkul4C. J. Xin5Amirhassan Shams-Ansari6David Barton7Bartholomeus Machielse8Marko Loncar9John A. Paulson School of Engineering and Applied Sciences, Harvard UniversityJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityAWS Center for Quantum NetworkingAWS Center for Quantum NetworkingJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityDRS Daylight SolutionsJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityAWS Center for Quantum NetworkingJohn A. Paulson School of Engineering and Applied Sciences, Harvard UniversityAbstract Practical quantum networks will require multi-qubit quantum nodes. This in turn will increase the complexity of the photonic circuits needed to control each qubit and require strategies to multiplex memories. Integrated photonics operating at visible to near-infrared (VNIR) wavelength range can provide solutions to these needs. In this work, we realize a VNIR thin-film lithium niobate (TFLN) integrated photonics platform with the key components to meet these requirements, including low-loss couplers (<1 dB/facet), switches (>20 dB extinction), and high-bandwidth electro-optic modulators (>50 GHz). With these devices, we demonstrate high-efficiency and CW-compatible frequency shifting (>50% efficiency at 15 GHz), as well as simultaneous laser amplitude and frequency control. Finally, we highlight an architecture for multiplexing quantum memories and outline how this platform can enable a 2-order of magnitude improvement in entanglement rates over single memory nodes. Our results demonstrate that TFLN can meet the necessary performance and scalability benchmarks to enable large-scale quantum nodes.https://doi.org/10.1038/s41467-024-54541-2 |
| spellingShingle | Daniel Assumpcao Dylan Renaud Aida Baradari Beibei Zeng Chawina De-Eknamkul C. J. Xin Amirhassan Shams-Ansari David Barton Bartholomeus Machielse Marko Loncar A thin film lithium niobate near-infrared platform for multiplexing quantum nodes Nature Communications |
| title | A thin film lithium niobate near-infrared platform for multiplexing quantum nodes |
| title_full | A thin film lithium niobate near-infrared platform for multiplexing quantum nodes |
| title_fullStr | A thin film lithium niobate near-infrared platform for multiplexing quantum nodes |
| title_full_unstemmed | A thin film lithium niobate near-infrared platform for multiplexing quantum nodes |
| title_short | A thin film lithium niobate near-infrared platform for multiplexing quantum nodes |
| title_sort | thin film lithium niobate near infrared platform for multiplexing quantum nodes |
| url | https://doi.org/10.1038/s41467-024-54541-2 |
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