Abstract
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.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Xianzheng Lang, Xuecheng Liu, Wen Zhang, Ragini Singh, Guoru Li, Yiyan Xie, Bingyuan Zhang, and Santosh Kumar
Appl. Opt. 62(18) 4753-4758 (2023)
Guiwei Zhang, Xuecheng Liu, Wen Zhang, Xianzheng Lang, Ragini Singh, Yiran Wang, Yiyan Xie, Bingyuan Zhang, Santosh Kumar, and Guoru Li
Appl. Opt. 62(15) 3904-3908 (2023)
Wen Zhang, Zhi Wang, Ragini Singh, Yiran Wang, Yiyan Xie, Xiancui Su, Feilong Gao, Guoru Li, Sandip Swarnakar, Rui Min, Bingyuan Zhang, and Santosh Kumar
Appl. Opt. 61(9) 2140-2146 (2022)