Fiber-optic whispering-gallery-mode magnetic field sensor based on magnetic fluid infiltrated hollow core fiber

被引：4
|
作者：
Zhang, Junying [1 ]
Tian, Chen [1 ]
Wang, Ruohui [2 ]
Chen, Haibin [1 ]
Zhang, Xiongxing [1 ]
Guo, Zilong [1 ]
Wang, Wei [1 ]
机构：
[1] Xian Technol Univ, Sch Optoelect Engn, Xian 710021, Peoples R China
[2] Northwest Univ, Sch Phys, Xian, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2021年 / 63卷 / 09期
基金：
中国国家自然科学基金;
关键词：
fiber-optic sensor; hollow core fiber; magnetic fluid; whispering-gallery mode; FABRY-PEROT SENSOR;
D O I：
10.1002/mop.32932
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A fiber-optic magnetic field sensor based on magnetic fluid (MF) infiltrated hollow core fiber (HCF) was proposed. The MF infiltrated HCF was used as a micro-capillary ring resonator, in which, whispering-gallery modes (WGMs) were exited through a closely placed tapered fiber. Through the intensity modulation introduced by external magnetic field on the resonance dip of the WGM excited in the MF infiltrated HCF, magnetic field measurement can be realized through a cost-effective way. Experimental results demonstrated a magnetic field linear measurement range of 40-140 Oe, and a sensitivity of 0.04 dB/Oe.
引用
收藏
页码：2442 / 2448
页数：7
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