熔接
磁场
材料科学
干涉测量
光纤
光纤传感器
包层(金属加工)
光学
偏移量(计算机科学)
单模光纤
包层模式
芯(光纤)
保偏光纤
光电子学
物理
计算机科学
复合材料
量子力学
程序设计语言
作者
Ming Deng,Danhui Liu,Decai Li
标识
DOI:10.1016/j.sna.2014.02.014
摘要
We report an optical fiber magnetic field sensor by merging the advantages of magnetic fluid and a core–cladding–mode interferometer which is directly fabricated on a standard single-mode fiber by using an arc fusion splicing machine. The sensing performances of the sensors are controllable by designing the parameters of the asymmetric-tapered structure. Experimental results show that the sensor with axial offset of 168 μm and taper waist diameter of 45 μm not only has good optical properties but also a relatively high magnetic-field sensitivity of ∼162.06 pm/mT ranging from 0 to 21.4 mT. The proposed sensors would find potential applications in weak magnetic sensing fields.
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