High-quality entangled photon source by symmetric beam displacement design
Entangled photon sources (EPSs) are pivotal in advancing quantum communication, computing, and sensing. The demand for deploying efficient, robust EPSs in the field, characterized by exceptional (phase) stability, has become increasingly apparent. This work introduces a polarization-entangled photon...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-03-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0225901 |
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| author | G. Paganini Á. Cuevas R. Camphausen A. Demuth V. Pruneri |
| author_facet | G. Paganini Á. Cuevas R. Camphausen A. Demuth V. Pruneri |
| author_sort | G. Paganini |
| collection | DOAJ |
| description | Entangled photon sources (EPSs) are pivotal in advancing quantum communication, computing, and sensing. The demand for deploying efficient, robust EPSs in the field, characterized by exceptional (phase) stability, has become increasingly apparent. This work introduces a polarization-entangled photon source, leveraging type-0 spontaneous parametric downconversion and constructed using commercial bulk optomechanical components. Our system is versatile, enabling the generation of N00N states for sensing applications or Bell states for quantum key distribution protocols. We attained a maximal Bell inequality violation, with the average entanglement visibility exceeding 99%. The potential for further performance enhancements is also explored. |
| format | Article |
| id | doaj-art-8ac6751bb0ca49ca9632c324c0567b9c |
| institution | DOAJ |
| issn | 2378-0967 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-8ac6751bb0ca49ca9632c324c0567b9c2025-08-20T03:03:07ZengAIP Publishing LLCAPL Photonics2378-09672025-03-01103031302031302-810.1063/5.0225901High-quality entangled photon source by symmetric beam displacement designG. Paganini0Á. Cuevas1R. Camphausen2A. Demuth3V. Pruneri4ICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, E-08860 Castelldefels (Barcelona), SpainICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, E-08860 Castelldefels (Barcelona), SpainICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, E-08860 Castelldefels (Barcelona), SpainICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, E-08860 Castelldefels (Barcelona), SpainICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, E-08860 Castelldefels (Barcelona), SpainEntangled photon sources (EPSs) are pivotal in advancing quantum communication, computing, and sensing. The demand for deploying efficient, robust EPSs in the field, characterized by exceptional (phase) stability, has become increasingly apparent. This work introduces a polarization-entangled photon source, leveraging type-0 spontaneous parametric downconversion and constructed using commercial bulk optomechanical components. Our system is versatile, enabling the generation of N00N states for sensing applications or Bell states for quantum key distribution protocols. We attained a maximal Bell inequality violation, with the average entanglement visibility exceeding 99%. The potential for further performance enhancements is also explored.http://dx.doi.org/10.1063/5.0225901 |
| spellingShingle | G. Paganini Á. Cuevas R. Camphausen A. Demuth V. Pruneri High-quality entangled photon source by symmetric beam displacement design APL Photonics |
| title | High-quality entangled photon source by symmetric beam displacement design |
| title_full | High-quality entangled photon source by symmetric beam displacement design |
| title_fullStr | High-quality entangled photon source by symmetric beam displacement design |
| title_full_unstemmed | High-quality entangled photon source by symmetric beam displacement design |
| title_short | High-quality entangled photon source by symmetric beam displacement design |
| title_sort | high quality entangled photon source by symmetric beam displacement design |
| url | http://dx.doi.org/10.1063/5.0225901 |
| work_keys_str_mv | AT gpaganini highqualityentangledphotonsourcebysymmetricbeamdisplacementdesign AT acuevas highqualityentangledphotonsourcebysymmetricbeamdisplacementdesign AT rcamphausen highqualityentangledphotonsourcebysymmetricbeamdisplacementdesign AT ademuth highqualityentangledphotonsourcebysymmetricbeamdisplacementdesign AT vpruneri highqualityentangledphotonsourcebysymmetricbeamdisplacementdesign |