Scalable fabrication of erbium-doped high-Q silica microtoroid resonators via sol-gel coating
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866929594811023360 |
|---|---|
| author | Imamura, Riku Fujii, Shun Nagashima, Keigo Tanabe, Takasumi |
| author_facet | Imamura, Riku Fujii, Shun Nagashima, Keigo Tanabe, Takasumi |
| contents | This study explores sol-gel methods for fabricating erbium-doped silica microtoroid resonators, addressing the limitations of conventional doping techniques and enhancing device scalability. We develop a reproducible sol-gel process that yields defect-free films for photonic applications, and detail common defects and troubleshooting strategies. Two fabrication methods are compared: traditional film deposition on substrates and the direct coating of prefabricated resonators. The latter enables the fabrication of larger resonator diameters (up to 450 μm) without buckling, while achieving a high-Q factor and a low lasing threshold of 350 μW. These erbium-doped resonators exhibit multi-mode laser oscillations at 1550 nm, revealing the sol-gel method's potential for realizing scalable, gain-doped photonic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_11018 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Scalable fabrication of erbium-doped high-Q silica microtoroid resonators via sol-gel coating Imamura, Riku Fujii, Shun Nagashima, Keigo Tanabe, Takasumi Optics This study explores sol-gel methods for fabricating erbium-doped silica microtoroid resonators, addressing the limitations of conventional doping techniques and enhancing device scalability. We develop a reproducible sol-gel process that yields defect-free films for photonic applications, and detail common defects and troubleshooting strategies. Two fabrication methods are compared: traditional film deposition on substrates and the direct coating of prefabricated resonators. The latter enables the fabrication of larger resonator diameters (up to 450 μm) without buckling, while achieving a high-Q factor and a low lasing threshold of 350 μW. These erbium-doped resonators exhibit multi-mode laser oscillations at 1550 nm, revealing the sol-gel method's potential for realizing scalable, gain-doped photonic devices. |
| title | Scalable fabrication of erbium-doped high-Q silica microtoroid resonators via sol-gel coating |
| topic | Optics |
| url | https://arxiv.org/abs/2411.11018 |