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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2511.16085 |
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| _version_ | 1866908864298876928 |
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| author | Murakami, Shoichi Hiraoka, Shunsuke Kobayashi, Toshiki Yamamoto, Takashi Ikuta, Rikizo |
| author_facet | Murakami, Shoichi Hiraoka, Shunsuke Kobayashi, Toshiki Yamamoto, Takashi Ikuta, Rikizo |
| contents | We demonstrate channel-selective frequency up-conversion from telecom wavelengths around 1540 nm for optical fiber communication to visible wavelengths around 780 nm, based on second-order optical nonlinearity in a cavity of the converted modes. In our experiment, we selectively convert a light from any frequency mode within frequency-multiplexed telecom signals to a desired output mode, determined by the cavity resonances. Based on the experimental results of the frequency up-conversion, we derive the signal-to-noise ratio of the process at the single-photon level, and discuss its applicability to channel-selective quantum frequency conversion (CS-QFC) in the context of frequency-multiplexed quantum networks. Finally, we describe specific use cases of the CS-QFC, which show its utility as a reconfigurable switching element in frequency-multiplexed networks, particularly for selectively performing Bell-state measurements between two photons originating from different frequencies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_16085 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Channel-selective frequency up-conversion for frequency-multiplexed quantum network Murakami, Shoichi Hiraoka, Shunsuke Kobayashi, Toshiki Yamamoto, Takashi Ikuta, Rikizo Quantum Physics We demonstrate channel-selective frequency up-conversion from telecom wavelengths around 1540 nm for optical fiber communication to visible wavelengths around 780 nm, based on second-order optical nonlinearity in a cavity of the converted modes. In our experiment, we selectively convert a light from any frequency mode within frequency-multiplexed telecom signals to a desired output mode, determined by the cavity resonances. Based on the experimental results of the frequency up-conversion, we derive the signal-to-noise ratio of the process at the single-photon level, and discuss its applicability to channel-selective quantum frequency conversion (CS-QFC) in the context of frequency-multiplexed quantum networks. Finally, we describe specific use cases of the CS-QFC, which show its utility as a reconfigurable switching element in frequency-multiplexed networks, particularly for selectively performing Bell-state measurements between two photons originating from different frequencies. |
| title | Channel-selective frequency up-conversion for frequency-multiplexed quantum network |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2511.16085 |