Herrera-Piad Luis A, Haus Joseph W, Jauregui-Vazquez Daniel, Sierra-Hernandez Juan M, Estudillo-Ayala Julian M, Lopez-Dieguez Yanelis, Rojas-Laguna Roberto
Departamento de Ingeniería Electrónica, División de Ingenierías, Universidad de Guanajuato, Carretera, Salamanca-Valle de Santiago km 3.5 + 1.8, Comunidad de Palo Blanco, Salamanca Gto. C.P. 36885, Mexico.
Department of Electro-Optics and Photonics, University of Dayton, Dayton, OH 45469, USA.
Sensors (Basel). 2017 Oct 20;17(10):2393. doi: 10.3390/s17102393.
A compact, magnetic field sensor system based on a short, bi-tapered optical fiber (BTOF) span lying on a magnetic tape was designed, fabricated, and characterized. We monitored the transmission spectrum from a broadband light source, which displayed a strong interference signal. After data collection, we applied a phase analysis of the interference optical spectrum. We here report the results on two fabricated, BTOFs with different interference spectrum characteristics; we analyzed the signal based on the interference between a high-order modal component and the core fiber mode. The sensor exhibited a linear response for magnetic field increments, and we achieved a phase sensitivity of around 0.28 rad/mT. The sensing setup presented remote sensing operation and low-cost transducer magnetic material.
设计、制作并表征了一种基于位于磁带上的短双锥形光纤（BTOF）跨距的紧凑型磁场传感器系统。我们监测了来自宽带光源的传输光谱，该光谱显示出强烈的干涉信号。数据采集后，我们对干涉光谱进行了相位分析。我们在此报告了两种具有不同干涉光谱特性的制作好的BTOF的结果；我们基于高阶模态分量与纤芯光纤模式之间的干涉来分析信号。该传感器对磁场增量呈现线性响应，并且我们实现了约0.28 rad/mT的相位灵敏度。该传感装置具有遥感操作和低成本换能器磁性材料的特点。
