Spectral compression of single-photon wave packets by sum-frequency conversion in slow-light waveguides
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866909576618573824 |
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| author | Raymer, Michael G. |
| author_facet | Raymer, Michael G. |
| contents | A slow-light scheme is proposed for simultaneous frequency conversion and spectral compression of a weak optical pulse, which may be in any quantum state including a single-photon state. Such a process plays crucial roles in a number of schemes for constructing quantum networks. Assuming that appropriate slow-light waveguides can be fabricated, theoretical modeling shows that a 3-ps pulse can be converted by sum-frequency generation into a pulse with duration in the ns regime with a corresponding spectral compression factor of the order of 1000 and a useful intrinsic efficiency up to 83%. Independent of the input pulse shape, the converted pulse will have a near-exponential rising shape, which is suitable for temporal-mode matching into an optical cavity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_08993 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spectral compression of single-photon wave packets by sum-frequency conversion in slow-light waveguides Raymer, Michael G. Quantum Physics A slow-light scheme is proposed for simultaneous frequency conversion and spectral compression of a weak optical pulse, which may be in any quantum state including a single-photon state. Such a process plays crucial roles in a number of schemes for constructing quantum networks. Assuming that appropriate slow-light waveguides can be fabricated, theoretical modeling shows that a 3-ps pulse can be converted by sum-frequency generation into a pulse with duration in the ns regime with a corresponding spectral compression factor of the order of 1000 and a useful intrinsic efficiency up to 83%. Independent of the input pulse shape, the converted pulse will have a near-exponential rising shape, which is suitable for temporal-mode matching into an optical cavity. |
| title | Spectral compression of single-photon wave packets by sum-frequency conversion in slow-light waveguides |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.08993 |