An intensity-modulated and large bandwidth magnetic field sensor based on a tapered fiber Bragg grating

Li, Pengfei; Yan, Haitao; Xie, Zhanwu; Li, Yanfei; Zhao, Xiaoxiao

doi:10.1016/j.optlastec.2019.105996

Cited by 24 publications

(4 citation statements)

References 23 publications

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“…The FBG in the capillary, without strain, perfectly compensates for temperature effects. Li et al [56] proposed an intensity-modulated, wide-bandwidth magnetic field fiber sensor based on Tapered Fiber Bragg Gratings (TFBGs), with a maximum sensitivity of −0.1933 dB/Oe and −0.1533 dB/Oe, as shown in Figure 6. It offers the advantages of no directional disturbance, wide bandwidth, high sensitivity, and integration.…”

Section: Fiber Bragg Gratingmentioning

confidence: 99%

The Structure and Applications of Fused Tapered Fiber Optic Sensing: A Review

Ban,

Lian

2024

Photonics

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Tapered optical fibers have continuously evolved in areas such as distributed sensing and laser generation in recent years. Their high sensitivity, ease of integration, and real-time monitoring capabilities have positioned them as a focal point in optical fiber sensing. This paper systematically introduces the structures and characteristics of various tapered optical fiber sensors, providing a comprehensive overview of their applications in biosensing, environmental monitoring, and industrial surveillance. Furthermore, it offers insights into the developmental trends of tapered optical fiber sensing, providing valuable references for future related research and suggesting potential directions for the further advancement of optical fiber sensing.

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Section: Fiber Bragg Gratingmentioning

confidence: 99%

The Structure and Applications of Fused Tapered Fiber Optic Sensing: A Review

Ban,

Lian

2024

Photonics

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“…Excited multiple modes in NCF formed the multimode interference, and FBGs were used for temperature compensation. In 2020, Pengfei Li et al [23] used tapered FBG and MF as bases in proposing an intensity-modulated magnetic field sensor. By tapering FBG, the sensor can generate a powerful evanescent field in the sensing region.…”

Section: Introductionmentioning

confidence: 99%

2D-Vector Magnetic Sensing Based on Ring-Shaped Fiber-Optic Structure Coated with Magnetic Fluid

Lin,

Zhu,

Zhao

et al. 2023

Micromachines

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In this work, a novel fiber-optic sensor for 2D magnetic sensing is explored based on nanostructured magnetic fluid. The fiber-optic sensor comprises a ring-shaped fiber structure that is coated with magnetic fluid. The unique magneto-optical characteristic of the nanostructured magnetic fluid enables the fiber-optic structure to detect magnetic fields. By utilizing the 3D Monte Carlo method, the magneto-optical characteristic induced by the nanostructure changes in the magnetic fluid was analyzed. The sensor can realize 2D vector magnetic sensing by intensity demodulation and achieves a sensitivity of 2.402 dB/mT. The proposed fiber optic sensor helps in developing a high-sensitivity 2D vector magnetic field sensor, which has potential applications in the fields of navigation, electrical power systems, and biological detection.

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“…It is widely used for designing various new-fashioned fiber-optic magnetic field sensors. The employed structures include tapered photonic crystal fiber [25], side-polished fiber [26], fiber F-P cavity [27], FBG [28][29][30][31], and long period gratings (LPGs) [32][33][34][35]. These structures are complicated and expensive to make.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Field and Temperature Dual-Parameter Sensor Based on Nonadiabatic Tapered Microfiber Cascaded With FBG

Zhang

et al. 2022

IEEE Access

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A kind of double-parameter sensor based on magnetic-fluid-coated nonadiabatic tapered microfiber (NTF) cascaded with fiber Bragg grating (FBG) is proposed and experimentally demonstrated. Simultaneous measurement of magnetic field and temperature is realized by monitoring the variation of NTF interference spectrum and FBG characteristic dip. In the magnetic field range of 0-18 mT, the highest magnetic field sensitivity can reach 1.159 nm/mΤ. The maximum temperature sensitivity is up to -1.737 nm/℃. The proposed magnetic-fluid-coated NTF interferometer cascaded with FBG will find extensive application prospect due to its high sensitivity, easy fabrication, compactness, strong robustness, and low cost.

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An intensity-modulated and large bandwidth magnetic field sensor based on a tapered fiber Bragg grating

Cited by 24 publications

References 23 publications

The Structure and Applications of Fused Tapered Fiber Optic Sensing: A Review

The Structure and Applications of Fused Tapered Fiber Optic Sensing: A Review

2D-Vector Magnetic Sensing Based on Ring-Shaped Fiber-Optic Structure Coated with Magnetic Fluid

Magnetic Field and Temperature Dual-Parameter Sensor Based on Nonadiabatic Tapered Microfiber Cascaded With FBG

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