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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2401.14150 |
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| _version_ | 1866929224080687104 |
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| author | Ge, Zhenxuan Chung, Tunghsun He, Yu-Ming Benyoucef, Mohamed Huo, Yongheng |
| author_facet | Ge, Zhenxuan Chung, Tunghsun He, Yu-Ming Benyoucef, Mohamed Huo, Yongheng |
| contents | Bright, polarized, and high-purity single-photon sources in telecom wavelengths are crucial components in long-distance quantum communication, optical quantum computation and quantum networks. Semiconductor InAs/InP quantum dots (QDs) combined with photonic cavities provide a competitive path leading to optimal single-photon sources in this range. Here, we demonstrate a bright and polarized single-photon source operating in the telecom C-band based on an elliptical Bragg grating (EBG) cavity. With a significant Purcell enhancement of 5.25$\pm$0.05, the device achieves a polarization ratio of 0.986, single-photon purity of g^2 (0)=0.078$\pm$0.016 and single-polarized photon collection efficiency of ~ 24% at the first lens (NA=0.65) without blinking. These findings suggest that C-band QD-based single-photon sources are potential candidates for advancing quantum communication. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_14150 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Polarized and bright telecom C-band single-photon source from InP-based quantum dots coupled to elliptical Bragg gratings Ge, Zhenxuan Chung, Tunghsun He, Yu-Ming Benyoucef, Mohamed Huo, Yongheng Quantum Physics Bright, polarized, and high-purity single-photon sources in telecom wavelengths are crucial components in long-distance quantum communication, optical quantum computation and quantum networks. Semiconductor InAs/InP quantum dots (QDs) combined with photonic cavities provide a competitive path leading to optimal single-photon sources in this range. Here, we demonstrate a bright and polarized single-photon source operating in the telecom C-band based on an elliptical Bragg grating (EBG) cavity. With a significant Purcell enhancement of 5.25$\pm$0.05, the device achieves a polarization ratio of 0.986, single-photon purity of g^2 (0)=0.078$\pm$0.016 and single-polarized photon collection efficiency of ~ 24% at the first lens (NA=0.65) without blinking. These findings suggest that C-band QD-based single-photon sources are potential candidates for advancing quantum communication. |
| title | Polarized and bright telecom C-band single-photon source from InP-based quantum dots coupled to elliptical Bragg gratings |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2401.14150 |