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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2510.23572 |
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| _version_ | 1866918173377298432 |
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| author | Berto, P. M. CampodÓnico, F. Matoso, A. A. Vergara, S. Coelho, P. A. Lima, G. PÁdua, S. CariÑe, J. |
| author_facet | Berto, P. M. CampodÓnico, F. Matoso, A. A. Vergara, S. Coelho, P. A. Lima, G. PÁdua, S. CariÑe, J. |
| contents | Time-bin encoded photon pairs enable robust, decoherence-resistant transmission through optical fibers for long-distance quantum communication, where phase noise poses a critical limitation to stable operation. Here, we implement an adaptive Perturbation-and-Observe algorithm on a fully digital FPGA platform operating with real-time feedback at 1 Hz. The control signal is derived from the coincidence counts of correlated photon pairs. This adaptive approach reduces the rise time by 70\% and the coincidence noise by 30\%, resulting in visibility improvements sustained for more than 600 s.These results provide an efficient solution for long-term phase stabilization in quantum and photonic systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_23572 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | FPGA-Based Adaptive Control for Phase Stabilization in Fiber-Optic Interferometers Using Correlated Photons Berto, P. M. CampodÓnico, F. Matoso, A. A. Vergara, S. Coelho, P. A. Lima, G. PÁdua, S. CariÑe, J. Quantum Physics Time-bin encoded photon pairs enable robust, decoherence-resistant transmission through optical fibers for long-distance quantum communication, where phase noise poses a critical limitation to stable operation. Here, we implement an adaptive Perturbation-and-Observe algorithm on a fully digital FPGA platform operating with real-time feedback at 1 Hz. The control signal is derived from the coincidence counts of correlated photon pairs. This adaptive approach reduces the rise time by 70\% and the coincidence noise by 30\%, resulting in visibility improvements sustained for more than 600 s.These results provide an efficient solution for long-term phase stabilization in quantum and photonic systems. |
| title | FPGA-Based Adaptive Control for Phase Stabilization in Fiber-Optic Interferometers Using Correlated Photons |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2510.23572 |