A Lens-Free and Mirror-Free Fiber Integrated Optical Magnetic Field Sensor Using Bi-Substituted Garnet

1998 ◽  
Vol 517 ◽  
Author(s):  
H. Minemoto ◽  
N. Itoh ◽  
D. Ishiko ◽  
S. Ishizuka
Keyword(s):  
Magnetic Field ◽  
Optical Fiber ◽  
Temperature Dependence ◽  
Magnetic Field Sensor ◽  
Optical Components ◽  
Integrated Optical ◽  
Field Sensor ◽  
Linearity Error

AbstractWe have developed a novel lens-free and mirror-free fiber integrated optical magnetic field sensor. The use of a bent optical fiber and chip optical components allows easy assembly with no alignment. The linearity error and temperature dependence of the sensitivity of this sensor were less than ±1% and +2%, respectively.

scholarly journals Magnetic field sensor based on helical long-period grating with three-core optical fiber

2021 ◽  
Author(s):  
YuanYuan Zhao ◽  
Shen Liu ◽  
Cong Xiong ◽  
Ying Wang ◽  
Zhengyong Li ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Optical Fiber ◽  
Magnetic Field Sensor ◽  
Long Period Grating ◽  
Long Period ◽  
Field Sensor

Optical fiber magnetic field sensor based on single-mode–multimode–single-mode structure and magnetic fluid

2013 ◽  
Vol 38 (20) ◽  
pp. 3999 ◽  
Author(s):  
Yaofei Chen ◽  
Qun Han ◽  
Tiegen Liu ◽  
Xinwei Lan ◽  
Hai Xiao
Keyword(s):  
Magnetic Field ◽  
Optical Fiber ◽  
Magnetic Fluid ◽  
Single Mode ◽  
Magnetic Field Sensor ◽  
Mode Structure ◽  
Field Sensor

scholarly journals Optical fiber magnetic field sensor based on magnetic fluid and microfiber mode interferometer

2015 ◽  
Vol 336 ◽  
pp. 5-8 ◽  
Author(s):  
Yangzi Zheng ◽  
Xinyong Dong ◽  
Chi Chiu Chan ◽  
Perry Ping Shum ◽  
Haibin Su
Keyword(s):  
Magnetic Field ◽  
Optical Fiber ◽  
Magnetic Fluid ◽  
Magnetic Field Sensor ◽  
Field Sensor

scholarly journals All Fiber Mach–Zehnder Interferometer Based on Intracavity Micro-Waveguide for a Magnetic Field Sensor

2021 ◽  
Vol 11 (23) ◽  
pp. 11569
Author(s):  
Maoqing Chen ◽  
Qifeng Liu ◽  
Yong Zhao
Keyword(s):  
Magnetic Field ◽  
Optical Fiber ◽  
Magnetic Fluid ◽  
Light Transmission ◽  
Magnetic Field Sensor ◽  
Magnetic Field Measurement ◽  
Term Operation ◽  
The Core ◽  
Field Sensor ◽  
Air Hole

A magnetic fluid (MF)-based magnetic field sensor with a filling-splicing fiber structure is proposed. The sensor realizes Mach–Zehnder interference by an optical fiber cascade structure consisting of single mode fiber (SMF), multimode fiber (MMF), and single-hole-dual-core fiber (SHDCF). The core in the cladding and the core in the air hole of SHDCF are used as the reference and sensing light path, respectively, and the air hole of SHDCF is filled with magnetic fluid to realize magnetic field measurement based on magnetic controlled refractive index (RI) characteristics. The theoretical feasibility of the proposed sensing structure is verified by Rsoft simulation, the optimized length of SHDCF is determined by optical fiber light transmission experiment, and the SHDCFs are well fused without collapse through the special parameter setting. The results show that the sensitivity of the sensor is −116.1 pm/Gs under a magnetic field of 0~200 Gs with a good long-term operation stability. The proposed sensor has the advantages of high stability, fast response, simple structure, and low cost, which has development potential in the field of miniaturized magnetic field sensing.

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