Temperature-insensitive fused-tapered fiber couplers based on negative thermal expansion material coating
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_ | 1866918186610327552 |
|---|---|
| author | Huang, Ze-Long Xu, Jie Li, Jue Ma, Chun-Zhao Luo, Jian Yu, Xin Hu, Yun-Qiao Guo, Chang-Lei Yeh, Hsien-Chi |
| author_facet | Huang, Ze-Long Xu, Jie Li, Jue Ma, Chun-Zhao Luo, Jian Yu, Xin Hu, Yun-Qiao Guo, Chang-Lei Yeh, Hsien-Chi |
| contents | A new method based on negative thermal expansion material coating is proposed to realize temperature insensitive fiber coupler. By coating a layer of modified epoxy resin with a negative thermal expansion coefficient onto the coupling region of fiber coupler, a stable splitting ratio over a wide temperature range can be achieved. A finite-element model for simulating the influence of thermal fluctuations on fused-tapered fiber coupler's splitting ratio is built and verified via experimental test. Furthermore, using this model, the influence of the thickness, length, and thermal expansion coefficient of the coating material on the splitting ratio is studied. Through adjusting the parameters of the coating, the temperature stability of the fiber coupler splitting ratio can be improved by more than one order of magnitude and improved to 1.2*10-5/K. The temperature-insensitive fused-tapered fiber coupler can find important application in optical precision measurement under extreme temperature environment, such as inter-satellite laser interferometry and high-precision fiber gyroscopes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_06270 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Temperature-insensitive fused-tapered fiber couplers based on negative thermal expansion material coating Huang, Ze-Long Xu, Jie Li, Jue Ma, Chun-Zhao Luo, Jian Yu, Xin Hu, Yun-Qiao Guo, Chang-Lei Yeh, Hsien-Chi Optics Applied Physics A new method based on negative thermal expansion material coating is proposed to realize temperature insensitive fiber coupler. By coating a layer of modified epoxy resin with a negative thermal expansion coefficient onto the coupling region of fiber coupler, a stable splitting ratio over a wide temperature range can be achieved. A finite-element model for simulating the influence of thermal fluctuations on fused-tapered fiber coupler's splitting ratio is built and verified via experimental test. Furthermore, using this model, the influence of the thickness, length, and thermal expansion coefficient of the coating material on the splitting ratio is studied. Through adjusting the parameters of the coating, the temperature stability of the fiber coupler splitting ratio can be improved by more than one order of magnitude and improved to 1.2*10-5/K. The temperature-insensitive fused-tapered fiber coupler can find important application in optical precision measurement under extreme temperature environment, such as inter-satellite laser interferometry and high-precision fiber gyroscopes. |
| title | Temperature-insensitive fused-tapered fiber couplers based on negative thermal expansion material coating |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2502.06270 |