High-Spatial-Resolution High-Accuracy OFDR Distributed Sensors Based on Seamless fs-WFBG Array
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| Publicado no: | Photonics vol. 12, no. 4 (2025), p. 352 |
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| Autor principal: | |
| Outros Autores: | , , |
| Publicado em: |
MDPI AG
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| Acesso em linha: | Citation/Abstract Full Text + Graphics Full Text - PDF |
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| 022 | |a 2304-6732 | ||
| 024 | 7 | |a 10.3390/photonics12040352 |2 doi | |
| 035 | |a 3194637003 | ||
| 045 | 2 | |b d20250101 |b d20251231 | |
| 084 | |a 231546 |2 nlm | ||
| 100 | 1 | |a Jin Zhengze |u Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; jinzz@semi.ac.cn (Z.J.); yuanjingzhao@semi.ac.cn (Y.Z.); zhangwt@semi.ac.cn (W.Z.) | |
| 245 | 1 | |a High-Spatial-Resolution High-Accuracy OFDR Distributed Sensors Based on Seamless fs-WFBG Array | |
| 260 | |b MDPI AG |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a In optical frequency domain reflectometry (OFDR), the random optical noise in Rayleigh backscattering and the sliding window length in the algorithm cause a trade-off between sensing spatial resolution and accuracy. This paper proposes a novel high-spatial-resolution high-accuracy OFDR distributed sensor based on a seamless femtosecond weak fiber Bragg grating (WFBG) array. Using femtosecond laser point-by-point (PbP) inscription technology, a 5 cm long seamless weak grating array was successfully fabricated on a polyimide fiber, consisting of ten 5 mm long WFBGs. The experimental results demonstrate that a sensing spatial resolution of 533 μm and a wavelength demodulation accuracy of ±2.05 pm were achieved for the first time. | |
| 653 | |a Optical noise | ||
| 653 | |a Accuracy | ||
| 653 | |a Bragg gratings | ||
| 653 | |a Fourier transforms | ||
| 653 | |a Lasers | ||
| 653 | |a Spatial resolution | ||
| 653 | |a Optical frequency | ||
| 653 | |a Distributed sensor systems | ||
| 653 | |a Algorithms | ||
| 653 | |a Spatial discrimination | ||
| 653 | |a Light | ||
| 653 | |a Inscriptions | ||
| 653 | |a Demodulation | ||
| 653 | |a Laser arrays | ||
| 653 | |a Business metrics | ||
| 700 | 1 | |a Huang Wenzhu |u Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; jinzz@semi.ac.cn (Z.J.); yuanjingzhao@semi.ac.cn (Y.Z.); zhangwt@semi.ac.cn (W.Z.) | |
| 700 | 1 | |a Zhao Yuanjing |u Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; jinzz@semi.ac.cn (Z.J.); yuanjingzhao@semi.ac.cn (Y.Z.); zhangwt@semi.ac.cn (W.Z.) | |
| 700 | 1 | |a Zhang, Wentao |u Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; jinzz@semi.ac.cn (Z.J.); yuanjingzhao@semi.ac.cn (Y.Z.); zhangwt@semi.ac.cn (W.Z.) | |
| 773 | 0 | |t Photonics |g vol. 12, no. 4 (2025), p. 352 | |
| 786 | 0 | |d ProQuest |t Advanced Technologies & Aerospace Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3194637003/abstract/embedded/H09TXR3UUZB2ISDL?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/3194637003/fulltextwithgraphics/embedded/H09TXR3UUZB2ISDL?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3194637003/fulltextPDF/embedded/H09TXR3UUZB2ISDL?source=fedsrch |