Indistinguishable Single Photons from Nanowire Quantum Dots in the Telecom O-Band
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908613348425728 |
|---|---|
| author | Alqedra, Mohammed K. Huang, Chiao-Tzu Chang, Wen-Hao Haffouz, Sofiane Poole, Philip J. Dalacu, Dan Elshaari, Ali W. Zwiller, Val |
| author_facet | Alqedra, Mohammed K. Huang, Chiao-Tzu Chang, Wen-Hao Haffouz, Sofiane Poole, Philip J. Dalacu, Dan Elshaari, Ali W. Zwiller, Val |
| contents | On-demand single-photon sources operating at telecom wavelengths are crucial for quantum communication and photonic quantum technologies. In this work, we demonstrate high-purity, indistinguishable single-photon generation in the telecom O-band from an InAsP/InP nanowire quantum dot. We measured a single-photon purity of $g^2(0)=0.006(3)$ under aboveband excitation. Furthermore, we characterize two-photon interference via Hong-Ou-Mandel measurements and achieve a photon indistinguishability of $94.6\,\%$ with a temporal postselection of 100 ps time window and $5.58\,\%$ without temporal postselection. We measure a first-lens source efficiency of $\sim28\,\%$. These results highlight the potential of nanowire quantum dots as a promising source of telecom single photons for photonic quantum applications, offering deterministic positioning, efficient photon extraction, and scalable production. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_12116 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Indistinguishable Single Photons from Nanowire Quantum Dots in the Telecom O-Band Alqedra, Mohammed K. Huang, Chiao-Tzu Chang, Wen-Hao Haffouz, Sofiane Poole, Philip J. Dalacu, Dan Elshaari, Ali W. Zwiller, Val Quantum Physics Mesoscale and Nanoscale Physics On-demand single-photon sources operating at telecom wavelengths are crucial for quantum communication and photonic quantum technologies. In this work, we demonstrate high-purity, indistinguishable single-photon generation in the telecom O-band from an InAsP/InP nanowire quantum dot. We measured a single-photon purity of $g^2(0)=0.006(3)$ under aboveband excitation. Furthermore, we characterize two-photon interference via Hong-Ou-Mandel measurements and achieve a photon indistinguishability of $94.6\,\%$ with a temporal postselection of 100 ps time window and $5.58\,\%$ without temporal postselection. We measure a first-lens source efficiency of $\sim28\,\%$. These results highlight the potential of nanowire quantum dots as a promising source of telecom single photons for photonic quantum applications, offering deterministic positioning, efficient photon extraction, and scalable production. |
| title | Indistinguishable Single Photons from Nanowire Quantum Dots in the Telecom O-Band |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2503.12116 |