Magnetic field sensing based on singlemode-multimode-singlemode fiber structures using magnetic fluids as cladding
Magnetic field sensing based on singlemode-multimode-singlemode fiber structures using magnetic fluids as cladding
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DOI：
10.1364/ol.38.003765
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发表时间：
2013-10-01
期刊：
影响因子：
3.6
通讯作者：
Huang, Juan
中科院分区：
文献类型：
--
作者：
Wang, Haotian;Pu, Shengli;Huang, Juan
提出了一种基于磁流体（MF）和单模-多模-单模（SMS）光纤结构的磁场传感。通过腐蚀SMS光纤结构的多模光纤包层，可以提高传感系统的灵敏度。当光纤腐蚀1680s时，我们的实验结构获得的最大磁场灵敏度为-16.86 pm/Oe。随着腐蚀时间的延长，纤维结构干涉倾角的可见性逐渐降低。考虑到灵敏度和可视性之间的权衡，采用了传感系统的优劣指数对传感性能进行综合评价。在我们的实验中，发现腐蚀时间与1620 s相似的结构具有最大的传感性能。(C) 2013年美国光学学会
Magnetic field sensing based on magnetic fluid (MF) and a singlemode-multimode-singlemode (SMS) fiber structure is proposed. The sensitivity of the proposed sensing system can be enhanced by corroding the cladding of the multimode fiber of the SMS fiber structure. The achieved maximum magnetic field sensitivity of our experimental structures is -16.86 pm/Oe as the fiber is corroded for 1680 s. The visibility of the interference dip for the MF-clad SMS fiber structure decreases with corrosion time. Considering the trade-off between sensitivity and visibility, the figure of merit of the sensing system is employed to evaluate the sensing performance comprehensively. In our experiments, the structure corroded for similar to 1620 s is found to have maximum sensing performance. (C) 2013 Optical Society of America