Ultrasensitive strain sensor of dual parallel FPIs utilizing femtosecond laser processing and Vernier effect

IF 2.2 3区 物理与天体物理 Q2 OPTICS
Changli Dong, Changning Liu
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引用次数: 0

Abstract

This study proposes and develops a highly sensitive fiber optic strain sensor utilizing femtosecond laser processing and the Vernier effect. The sensor features two parallel Fabry-Pérot interferometers (FPI), with each FPI consisting of an air bubble and a tapered fiber optic cascade. FPI 2 serves as the sensing cavity, while FPI 1 acts as the reference cavity. The strain sensing capability of a single FPI 2 is measured at 6.67 p.m./με, while the parallel configuration of FPI 2 with FPI 1 achieves a sensitivity of 68.3 p.m./με, resulting in an amplification of 10.24. Furthermore, the proposed sensor demonstrates excellent repeatability, low-temperature cross-sensitivity, simple fabrication, and cost-effectiveness, making it a promising tool for strain measurement applications.
利用飞秒激光加工和游标效应的双平行 FPI 超灵敏应变传感器
本研究提出并开发了一种利用飞秒激光加工和维尼尔效应的高灵敏光纤应变传感器。该传感器具有两个平行的法布里-佩罗干涉仪(FPI),每个 FPI 由一个气泡和一个锥形光纤级联组成。FPI 2 作为传感腔,而 FPI 1 作为参考腔。据测量,单个 FPI 2 的应变传感能力为 6.67 p.m./με ,而 FPI 2 与 FPI 1 并联配置的灵敏度为 68.3 p.m./με ,放大倍数为 10.24。此外,所提出的传感器还具有出色的重复性、低温交叉灵敏度、制造简单和成本效益高的特点,使其成为应变测量应用中一种前景广阔的工具。
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来源期刊
Optics Communications
Optics Communications 物理-光学
CiteScore
5.10
自引率
8.30%
发文量
681
审稿时长
38 days
期刊介绍: Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.
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