Zhang Guiwei, Liu Xuecheng, Zhang Wen, Lang Xianzheng, Singh Ragini, Wang Yiran, Xie Yiyan, Zhang Bingyuan, Kumar Santosh, Li Guoru
Appl Opt. 2023 May 20;62(15):3904-3908. doi: 10.1364/AO.487134.
In this work, the fabrication and sensing performance of fusion structures based on single-mode fiber (SMF) and multimode fiber (MMF) with different cladding diameters are discussed, and the effects of different lengths of MMF and fiber etching on sensing performance are analyzed. First, the transmitted intensity measurement experiment is performed, and the results indicate that the performance of the SMF-MMF-SMF(SMS)-based structure is better for sensing purposes. In addition, the results demonstrate that the performance of etched fiber is better than that of non-etched fiber. The etched fiber structure with lower fiber diameters produces more evanescent waves and is better for sensing purposes. Therefore, the proposed structure has certain development potential as an application of future optical fiber sensors.
在这项工作中，讨论了基于不同包层直径的单模光纤（SMF）和多模光纤（MMF）的融合结构的制造和传感性能，并分析了不同长度的MMF和光纤蚀刻对传感性能的影响。首先，进行了透射强度测量实验，结果表明基于SMF-MMF-SMF（SMS）结构的性能在传感方面更好。此外，结果表明蚀刻光纤的性能优于未蚀刻光纤。具有较小光纤直径的蚀刻光纤结构会产生更多的倏逝波，在传感方面表现更好。因此，所提出的结构作为未来光纤传感器的应用具有一定的发展潜力。
