학술논문
Fiber-Optic Magnetic Field Sensing Based on Microfiber Knot Resonator with Magnetic Fluid Cladding.
Document Type
Article
Author
Source
Subject
*FIBER optics
*MAGNETIC fields
*RESONATORS
*MAGNETIC fluids
*OPTICAL devices
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Language
ISSN
1424-8220
Abstract
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 MgF2 slab is adopted as the substrate. The sensitivity increases with the decrease of the MKR ring diameter. The achieved maximum magnetic field sensitivity is 277 pm/mT. The results of this work have the potential to promote the development of magnetically controllable optical devices and the design of ultra-compact cost-effective magnetic field sensors. [ABSTRACT FROM AUTHOR]