Polarization-entangled photon pairs generation from a single lithium niobate waveguide with single poling period
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arXiv
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| Hauptverfasser: | , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866912095800393728 |
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| author | Zhang, Xinyue Pei, Sihui Yao, Ni Wang, Shuhao You, J. Q. Tong, Limin Fang, Wei |
| author_facet | Zhang, Xinyue Pei, Sihui Yao, Ni Wang, Shuhao You, J. Q. Tong, Limin Fang, Wei |
| contents | Polarization-entangled photon pairs are essential sources for photonic quantum information processing. However, generating entangled photon pairs with large detuning via spontaneous parametric down-conversion (SPDC) often requires complex configurations to compensate for phase matching. Here, we propose a simple and efficient scheme to generate polarization-entangled photon pairs based on type-0 SPDC in a thin-film lithium niobate waveguide with a single poling period. By utilizing the strong dispersion engineering capabilities of thin-film waveguides, we can achieve both degenerate and highly detuned entangled photon pairs. Furthermore, we demonstrate on-chip temporal compensation using an integrated waveguide structure. Our approach offers a compact and scalable solution for integrated quantum photonic circuits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_22789 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Polarization-entangled photon pairs generation from a single lithium niobate waveguide with single poling period Zhang, Xinyue Pei, Sihui Yao, Ni Wang, Shuhao You, J. Q. Tong, Limin Fang, Wei Optics Quantum Physics Polarization-entangled photon pairs are essential sources for photonic quantum information processing. However, generating entangled photon pairs with large detuning via spontaneous parametric down-conversion (SPDC) often requires complex configurations to compensate for phase matching. Here, we propose a simple and efficient scheme to generate polarization-entangled photon pairs based on type-0 SPDC in a thin-film lithium niobate waveguide with a single poling period. By utilizing the strong dispersion engineering capabilities of thin-film waveguides, we can achieve both degenerate and highly detuned entangled photon pairs. Furthermore, we demonstrate on-chip temporal compensation using an integrated waveguide structure. Our approach offers a compact and scalable solution for integrated quantum photonic circuits. |
| title | Polarization-entangled photon pairs generation from a single lithium niobate waveguide with single poling period |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2410.22789 |