Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics
Abstract Efficient single-photon generation remains a big challenge in quantum photonics. A promising approach to overcome this challenge is to employ active multiplexing—repeating a nondeterministic photon pair generation process across orthogonal degrees of freedom and exploiting heralding to acti...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-02-01
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| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-024-00929-3 |
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| author | Çağın Ekici Yonghe Yu Jeremy C. Adcock Alif Laila Muthali Mujtaba Zahidy Heyun Tan Zhongjin Lin Hao Li Leif K. Oxenløwe Xinlun Cai Yunhong Ding |
| author_facet | Çağın Ekici Yonghe Yu Jeremy C. Adcock Alif Laila Muthali Mujtaba Zahidy Heyun Tan Zhongjin Lin Hao Li Leif K. Oxenløwe Xinlun Cai Yunhong Ding |
| author_sort | Çağın Ekici |
| collection | DOAJ |
| description | Abstract Efficient single-photon generation remains a big challenge in quantum photonics. A promising approach to overcome this challenge is to employ active multiplexing—repeating a nondeterministic photon pair generation process across orthogonal degrees of freedom and exploiting heralding to actively route the heralded photon to the desired single output mode via feedforward. The main barriers of multiplexing schemes, however, are minimizing resource requirements to allow scalability and the lack of availability of high-speed, low-loss switches. Here, we present an on-chip temporal multiplexing scheme utilizing thin-film lithium niobate (TFLN) photonics to effectively address these challenges. Our time-multiplexed source, operating at a rate of 62.2 MHz, enhances single-photon probability by a factor of 3.37 ± 0.05 without introducing additional multi-photon noise. This demonstration highlights the feasibility and potential of TFLN photonics for large-scale complex quantum information technologies. |
| format | Article |
| id | doaj-art-f1db2072c6244dec80725f78c0ecfa7d |
| institution | Kabale University |
| issn | 2056-6387 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj-art-f1db2072c6244dec80725f78c0ecfa7d2025-02-09T12:48:59ZengNature Portfolionpj Quantum Information2056-63872025-02-011111510.1038/s41534-024-00929-3Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonicsÇağın Ekici0Yonghe Yu1Jeremy C. Adcock2Alif Laila Muthali3Mujtaba Zahidy4Heyun Tan5Zhongjin Lin6Hao Li7Leif K. Oxenløwe8Xinlun Cai9Yunhong Ding10Center for Silicon Photonics for Optical Communication (SPOC), Department of Electrical and Photonics Engineering, Technical University of DenmarkCenter for Silicon Photonics for Optical Communication (SPOC), Department of Electrical and Photonics Engineering, Technical University of DenmarkCenter for Silicon Photonics for Optical Communication (SPOC), Department of Electrical and Photonics Engineering, Technical University of DenmarkCenter for Silicon Photonics for Optical Communication (SPOC), Department of Electrical and Photonics Engineering, Technical University of DenmarkCenter for Silicon Photonics for Optical Communication (SPOC), Department of Electrical and Photonics Engineering, Technical University of DenmarkState Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen UniversityState Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen UniversityState Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen UniversityCenter for Silicon Photonics for Optical Communication (SPOC), Department of Electrical and Photonics Engineering, Technical University of DenmarkState Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen UniversityCenter for Silicon Photonics for Optical Communication (SPOC), Department of Electrical and Photonics Engineering, Technical University of DenmarkAbstract Efficient single-photon generation remains a big challenge in quantum photonics. A promising approach to overcome this challenge is to employ active multiplexing—repeating a nondeterministic photon pair generation process across orthogonal degrees of freedom and exploiting heralding to actively route the heralded photon to the desired single output mode via feedforward. The main barriers of multiplexing schemes, however, are minimizing resource requirements to allow scalability and the lack of availability of high-speed, low-loss switches. Here, we present an on-chip temporal multiplexing scheme utilizing thin-film lithium niobate (TFLN) photonics to effectively address these challenges. Our time-multiplexed source, operating at a rate of 62.2 MHz, enhances single-photon probability by a factor of 3.37 ± 0.05 without introducing additional multi-photon noise. This demonstration highlights the feasibility and potential of TFLN photonics for large-scale complex quantum information technologies.https://doi.org/10.1038/s41534-024-00929-3 |
| spellingShingle | Çağın Ekici Yonghe Yu Jeremy C. Adcock Alif Laila Muthali Mujtaba Zahidy Heyun Tan Zhongjin Lin Hao Li Leif K. Oxenløwe Xinlun Cai Yunhong Ding Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics npj Quantum Information |
| title | Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics |
| title_full | Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics |
| title_fullStr | Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics |
| title_full_unstemmed | Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics |
| title_short | Scalable temporal multiplexing of telecom photons via thin-film lithium niobate photonics |
| title_sort | scalable temporal multiplexing of telecom photons via thin film lithium niobate photonics |
| url | https://doi.org/10.1038/s41534-024-00929-3 |
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