Fiber-Optic Magnetic Field Sensing Based on Microfiber Knot Resonator with Magnetic Fluid Cladding

A kind of all-fiber magnetic field sensing structure is proposed and demonstrated here. The sensing element includes a microfiber knot resonator (MKR) cladded with magnetic fluid (MF). The low-index MgF<sub>2</sub> slab is adopted as the substrate. The sensitivity increases with the decr...

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Bibliographic Details
Main Authors: Yuqi Li, Shengli Pu, Yongliang Zhao, Tianjun Yao
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/18/12/4358