Electrically pumped ultrabright entangled photons on chip
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866915452683288576 |
|---|---|
| author | Jiao, Xu-Feng Zheng, Ming-Yang Chen, Yi-Hang Cao, Bo Wang, Xina Liu, Yang Yang, Cheng-Ao Xie, Xiu-Ping Lu, Chao-Yang Niu, Zhi-Chuan Zhang, Qiang Pan, Jian-Wei |
| author_facet | Jiao, Xu-Feng Zheng, Ming-Yang Chen, Yi-Hang Cao, Bo Wang, Xina Liu, Yang Yang, Cheng-Ao Xie, Xiu-Ping Lu, Chao-Yang Niu, Zhi-Chuan Zhang, Qiang Pan, Jian-Wei |
| contents | Entangled photon sources (EPS) are essential for quantum science and technology. Despite advancements in integrated optical platforms like thin-film lithium niobate, a scalable, high-performance, chip-scale EPS has remained elusive. We address this by demonstrating an electrically pumped, post-selection-free polarization-EPS, achieved through hybrid integration of a distributed feedback laser with thin-film lithium niobate chip which integrates periodically poled lithium niobate waveguides, beam splitter, and polarization rotator combiner. By injecting current into the chip, we realize a high-performance EPS with a bandwidth of 73 nm and an entanglement pair generation rate of 4.5*10^10 pairs/s/mW. The polarization entanglement shows Bell-state fidelities above 96% across frequency-correlated modes. This compact, integrated EPS enables key applications, including high-speed quantum key distribution via wavelength division multiplexing, satellite-based quantum communication, and entanglement-based quantum metrology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_14566 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electrically pumped ultrabright entangled photons on chip Jiao, Xu-Feng Zheng, Ming-Yang Chen, Yi-Hang Cao, Bo Wang, Xina Liu, Yang Yang, Cheng-Ao Xie, Xiu-Ping Lu, Chao-Yang Niu, Zhi-Chuan Zhang, Qiang Pan, Jian-Wei Quantum Physics Optics Entangled photon sources (EPS) are essential for quantum science and technology. Despite advancements in integrated optical platforms like thin-film lithium niobate, a scalable, high-performance, chip-scale EPS has remained elusive. We address this by demonstrating an electrically pumped, post-selection-free polarization-EPS, achieved through hybrid integration of a distributed feedback laser with thin-film lithium niobate chip which integrates periodically poled lithium niobate waveguides, beam splitter, and polarization rotator combiner. By injecting current into the chip, we realize a high-performance EPS with a bandwidth of 73 nm and an entanglement pair generation rate of 4.5*10^10 pairs/s/mW. The polarization entanglement shows Bell-state fidelities above 96% across frequency-correlated modes. This compact, integrated EPS enables key applications, including high-speed quantum key distribution via wavelength division multiplexing, satellite-based quantum communication, and entanglement-based quantum metrology. |
| title | Electrically pumped ultrabright entangled photons on chip |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2508.14566 |