Ultrabright Entangled-Photon-Pair Generation from an AlGaAs-On-Insulator Microring Resonator
Entangled-photon pairs are an essential resource for quantum-information technologies. Chip-scale sources of entangled pairs have been integrated with various photonic platforms, including silicon, nitrides, indium phosphide, and lithium niobate, but each has fundamental limitations that restrict th...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2021-03-01
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| Series: | PRX Quantum |
| Online Access: | http://doi.org/10.1103/PRXQuantum.2.010337 |
| _version_ | 1819018326680010752 |
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| author | Trevor J. Steiner Joshua E. Castro Lin Chang Quynh Dang Weiqiang Xie Justin Norman John E. Bowers Galan Moody |
| author_facet | Trevor J. Steiner Joshua E. Castro Lin Chang Quynh Dang Weiqiang Xie Justin Norman John E. Bowers Galan Moody |
| author_sort | Trevor J. Steiner |
| collection | DOAJ |
| description | Entangled-photon pairs are an essential resource for quantum-information technologies. Chip-scale sources of entangled pairs have been integrated with various photonic platforms, including silicon, nitrides, indium phosphide, and lithium niobate, but each has fundamental limitations that restrict the photon-pair brightness and quality, including weak optical nonlinearity or high waveguide loss. Here, we demonstrate a novel ultralow-loss AlGaAs-on-insulator platform capable of generating time-energy entangled photons in a Q>1 million microring resonator with nearly 1000-fold improvement in brightness compared to existing sources. The waveguide-integrated source exhibits an internal generation rate greater than 20×10^{9} pairs s^{−1}mW^{−2}, emits near 1550 nm, produces heralded single photons with >99% purity, and violates Bell’s inequality by more than 40 standard deviations with visibility >97%. Combined with the high optical nonlinearity and optical gain of AlGaAs for active component integration, these are all essential features for a scalable quantum photonic platform. |
| first_indexed | 2024-12-21T03:17:39Z |
| format | Article |
| id | doaj.art-c16f61df6fc14614b917c8bcc49a556a |
| institution | Directory Open Access Journal |
| issn | 2691-3399 |
| language | English |
| last_indexed | 2024-12-21T03:17:39Z |
| publishDate | 2021-03-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | PRX Quantum |
| spelling | doaj.art-c16f61df6fc14614b917c8bcc49a556a2022-12-21T19:17:47ZengAmerican Physical SocietyPRX Quantum2691-33992021-03-012101033710.1103/PRXQuantum.2.010337Ultrabright Entangled-Photon-Pair Generation from an AlGaAs-On-Insulator Microring ResonatorTrevor J. SteinerJoshua E. CastroLin ChangQuynh DangWeiqiang XieJustin NormanJohn E. BowersGalan MoodyEntangled-photon pairs are an essential resource for quantum-information technologies. Chip-scale sources of entangled pairs have been integrated with various photonic platforms, including silicon, nitrides, indium phosphide, and lithium niobate, but each has fundamental limitations that restrict the photon-pair brightness and quality, including weak optical nonlinearity or high waveguide loss. Here, we demonstrate a novel ultralow-loss AlGaAs-on-insulator platform capable of generating time-energy entangled photons in a Q>1 million microring resonator with nearly 1000-fold improvement in brightness compared to existing sources. The waveguide-integrated source exhibits an internal generation rate greater than 20×10^{9} pairs s^{−1}mW^{−2}, emits near 1550 nm, produces heralded single photons with >99% purity, and violates Bell’s inequality by more than 40 standard deviations with visibility >97%. Combined with the high optical nonlinearity and optical gain of AlGaAs for active component integration, these are all essential features for a scalable quantum photonic platform.http://doi.org/10.1103/PRXQuantum.2.010337 |
| spellingShingle | Trevor J. Steiner Joshua E. Castro Lin Chang Quynh Dang Weiqiang Xie Justin Norman John E. Bowers Galan Moody Ultrabright Entangled-Photon-Pair Generation from an AlGaAs-On-Insulator Microring Resonator PRX Quantum |
| title | Ultrabright Entangled-Photon-Pair Generation from an AlGaAs-On-Insulator Microring Resonator |
| title_full | Ultrabright Entangled-Photon-Pair Generation from an AlGaAs-On-Insulator Microring Resonator |
| title_fullStr | Ultrabright Entangled-Photon-Pair Generation from an AlGaAs-On-Insulator Microring Resonator |
| title_full_unstemmed | Ultrabright Entangled-Photon-Pair Generation from an AlGaAs-On-Insulator Microring Resonator |
| title_short | Ultrabright Entangled-Photon-Pair Generation from an AlGaAs-On-Insulator Microring Resonator |
| title_sort | ultrabright entangled photon pair generation from an algaas on insulator microring resonator |
| url | http://doi.org/10.1103/PRXQuantum.2.010337 |
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