Near-unity quantum interference of transverse spatial modes in an ultra-compact inverse-designed photonic device
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_ | 1866908362163093504 |
|---|---|
| author | Roque, Jamika Ann Peace, Daniel White, Simon Polino, Emanuele Das, Sayantan Ghafari, Farzard Slussarenko, Sergei Tischler, Nora Romero, Jacquiline |
| author_facet | Roque, Jamika Ann Peace, Daniel White, Simon Polino, Emanuele Das, Sayantan Ghafari, Farzard Slussarenko, Sergei Tischler, Nora Romero, Jacquiline |
| contents | The transverse spatial mode of photons is an untapped resource for scaling up integrated photonic quantum computing. To be practically useful for improving scalability, reliable and high-visibility quantum interference between transverse spatial modes on-chip needs to be demonstrated. We show repeatable quantum interference using inverse-designed transverse mode beamsplitters that have an ultra-compact footprint of 3 $μm$ $\times$ 3 $μm$ -- the smallest transverse mode beamsplitters for 1550 nm photons to date. We measure a Hong-Ou-Mandel visibility of up to 99.56$\pm$0.64 % from a single device, with an average visibility across three identical devices of 99.38$\pm$0.41 %, indicating a high degree of reproducibility. Our work demonstrates that inverse-designed components are suitable for engineering quantum interference on-chip of multimode devices, paving the way for future compact integrated quantum photonic devices that exploit the transverse spatial mode of photons for high-dimensional quantum information. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08668 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Near-unity quantum interference of transverse spatial modes in an ultra-compact inverse-designed photonic device Roque, Jamika Ann Peace, Daniel White, Simon Polino, Emanuele Das, Sayantan Ghafari, Farzard Slussarenko, Sergei Tischler, Nora Romero, Jacquiline Quantum Physics The transverse spatial mode of photons is an untapped resource for scaling up integrated photonic quantum computing. To be practically useful for improving scalability, reliable and high-visibility quantum interference between transverse spatial modes on-chip needs to be demonstrated. We show repeatable quantum interference using inverse-designed transverse mode beamsplitters that have an ultra-compact footprint of 3 $μm$ $\times$ 3 $μm$ -- the smallest transverse mode beamsplitters for 1550 nm photons to date. We measure a Hong-Ou-Mandel visibility of up to 99.56$\pm$0.64 % from a single device, with an average visibility across three identical devices of 99.38$\pm$0.41 %, indicating a high degree of reproducibility. Our work demonstrates that inverse-designed components are suitable for engineering quantum interference on-chip of multimode devices, paving the way for future compact integrated quantum photonic devices that exploit the transverse spatial mode of photons for high-dimensional quantum information. |
| title | Near-unity quantum interference of transverse spatial modes in an ultra-compact inverse-designed photonic device |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2505.08668 |