Development and stability analysis of an S-tapered optical fiber-based sensor structure

In this paper, three S-tapered fiber (STF) structures with different diameters (40, 60, and 80 µm) are fabricated using conventional single-mode fiber. First, the reproducibility of the proposed S-tapered structure is confirmed through an analysis of the diameter distribution. Considering the transm...

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Bibliographic Details
Published in:Applied optics (2004) 2023-06, Vol.62 (16), p.E37
Main Authors: Xiao, Lucan, Zhang, Wen, Liu, Xuecheng, Lang, Xianzheng, Singh, Ragini, Li, Guoru, Xie, Yiyan, Zhang, Bingyuan, Kumar, Santosh
Format: Article
Language:English
Subjects:
Evanescent waves
Optical fibers
Refractivity
Stability analysis
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Summary:In this paper, three S-tapered fiber (STF) structures with different diameters (40, 60, and 80 µm) are fabricated using conventional single-mode fiber. First, the reproducibility of the proposed S-tapered structure is confirmed through an analysis of the diameter distribution. Considering the transmitted intensities of the three various diameter, S-tapered structures reveal that the STF with a 40 µm diameter produces more evanescent waves and is more sensitive to external refractive index variations. Therefore, the STF structure with a 40 µm diameter was evaluated for the detection of different concentration of glucose solutions, demonstrating that the structure has the potential to be utilized to develop a highly sensitive fiber sensor.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.483335