DFBG-based shape sensor for large-curvature reconstruction
We fabricated a 3D shape sensor based on a wavelength-division multiplexed (WDM) and space-division multiplexing (SDM) dense fiber Bragg grating (DFBG) array with 100 FBGs in a multicore optical fiber (MCF). An overlapping spectrum separation (OSS) algorithm was proposed and applied to long measurement range and large-curvature 3D shape sensing. Shape reconstruction was successfully achieved for a length of 1994.094 m and a maximum curvature of 250 m<sup>-1</sup>, with a maximum relative error of only 3.209%. This sensor shows great potential for applications in the medical field.
Authors
- Yijie Zhang (ORCID: https://orcid.org/0000-0002-6876-9532)
- Weiliang Zhao (ORCID: https://orcid.org/0000-0003-2599-9968)
- Jun Zuo (ORCID: https://orcid.org/0000-0002-2763-3348)
- Minming Zhang (ORCID: https://orcid.org/0000-0002-3742-1445)
- Hanlin Liu (ORCID: https://orcid.org/0009-0008-4455-4642)
- Qizhen Sun (ORCID: https://orcid.org/0000-0002-2410-6470)
- Yan Zhang (ORCID: https://orcid.org/0000-0001-9235-6861)
- Zhengqi Sun
- Xiangpeng Xiao
Institutions
- Heinz Optical Engineering (United States) (US)
- Huazhong University of Science and Technology (CN)
Publication Details
- Published
- 2025-05-22
- DOI
- https://doi.org/10.1117/12.3060569
- Primary Topic
- Optical measurement and interference techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00