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| Main Authors: | , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2310.04293 |
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| _version_ | 1866914825028763648 |
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| author | Roeder, F. Pollmann, R. Stefszky, M. Santandrea, M. Luo, K. -H. Quiring, V. Ricken, R. Eigner, C. Brecht, B. Silberhorn, C. |
| author_facet | Roeder, F. Pollmann, R. Stefszky, M. Santandrea, M. Luo, K. -H. Quiring, V. Ricken, R. Eigner, C. Brecht, B. Silberhorn, C. |
| contents | The bi-photon correlation time, a measure for the conditional uncertainty in the temporal arrival of two photons from a photon pair source, is a key performance identifier for many quantum spectroscopy applications, with shorter correlation times typically yielding better performance. Furthermore, it provides fundamental insight into the effects of dispersion on the bi-photon state. Here, we retrieve ultrashort bi-photon correlation times of around $100\,\mathrm{fs}$ by measuring simultaneously spectral and temporal interferograms at the output of an SU(1,1) interferometer based on an integrated broadband parametric down-conversion source in a $\mathrm{Ti:LiNbO}_3$ waveguide |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_04293 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Measurement of ultrashort bi-photon correlation times with an integrated two-colour broadband SU(1,1)-interferometer Roeder, F. Pollmann, R. Stefszky, M. Santandrea, M. Luo, K. -H. Quiring, V. Ricken, R. Eigner, C. Brecht, B. Silberhorn, C. Quantum Physics The bi-photon correlation time, a measure for the conditional uncertainty in the temporal arrival of two photons from a photon pair source, is a key performance identifier for many quantum spectroscopy applications, with shorter correlation times typically yielding better performance. Furthermore, it provides fundamental insight into the effects of dispersion on the bi-photon state. Here, we retrieve ultrashort bi-photon correlation times of around $100\,\mathrm{fs}$ by measuring simultaneously spectral and temporal interferograms at the output of an SU(1,1) interferometer based on an integrated broadband parametric down-conversion source in a $\mathrm{Ti:LiNbO}_3$ waveguide |
| title | Measurement of ultrashort bi-photon correlation times with an integrated two-colour broadband SU(1,1)-interferometer |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2310.04293 |