Erecting time telescope for photonic quantum networks
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866918121372123136 |
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| author | Srivastava, Shivang Horoshko, Dmitri B. Kolobov, Mikhail I. |
| author_facet | Srivastava, Shivang Horoshko, Dmitri B. Kolobov, Mikhail I. |
| contents | A time lens allows one to stretch or compress optical waveforms in time, similar to the conventional lens in space. However, a single-time-lens imaging system always imparts a residual temporal chirp on the image, which may be detrimental for quantum networks, where the temporal image interacts with other fields. We show that a two-time-lens imaging system satisfying the telescopic condition, a time telescope, is necessary and sufficient for creating a chirpless image. We develop a general theory of a time telescope, find the conditions for loss minimization, and show how an erecting time telescope creating a real image of a temporal object can be constructed. We consider several applications of such a telescope to making indistinguishable the photons generated by spontaneous parametric downconversion or single emitters such as quantum dots. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_09493 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Erecting time telescope for photonic quantum networks Srivastava, Shivang Horoshko, Dmitri B. Kolobov, Mikhail I. Quantum Physics A time lens allows one to stretch or compress optical waveforms in time, similar to the conventional lens in space. However, a single-time-lens imaging system always imparts a residual temporal chirp on the image, which may be detrimental for quantum networks, where the temporal image interacts with other fields. We show that a two-time-lens imaging system satisfying the telescopic condition, a time telescope, is necessary and sufficient for creating a chirpless image. We develop a general theory of a time telescope, find the conditions for loss minimization, and show how an erecting time telescope creating a real image of a temporal object can be constructed. We consider several applications of such a telescope to making indistinguishable the photons generated by spontaneous parametric downconversion or single emitters such as quantum dots. |
| title | Erecting time telescope for photonic quantum networks |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2307.09493 |