A high efficient method for demodulation of FBG sensors

Ni, Yi; Qin, Xuanyi; Yao, Huixuan; Guo, Yu; Chen, Xiangfei

doi:10.1016/j.yofte.2017.06.013

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…Traditional fiber grating demodulation methods include the tunable filter method [1] and tunable laser method [2] , which make the sensing system power-consuming [3] and are not conducive to real-time detection due to its manufacturing complexity [4] and thermostatic control of the system light source [5] . An FBG demodulation system using a 1550 nm VCSEL is designed in [6], effectively reducing the manufacturing cost and power consumption of the conventional demodulator.…”

Section: Introductionmentioning

confidence: 99%

A VCSEL-based temperature-adaptive FBG demodulation system

Zhang,

Wang,

Chi

et al. 2024

Fourth International Conference on Sensors and Information Technology (ICSI 2024)

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A temperature-adaptive Fiber Bragg Grating (FBG) demodulation system based on a long-wavelength Vertical-Cavity Surface Emitting laser (VCSEL) is designed to reduce power consumption and cost in this paper. The temperature-adaptive FBG system is described in detail through the sections of VCSEL characterisation and selection, selection of the methane absorption peak wavelength and matching with the laser scanning wavelength range, selection of the fiber grating wavelength and matching with the laser scanning wavelength range, and calculation of the FBG wavelength change. The experimental results show that the system has an effective scanning wavelength range of 3.7 nm in the operating environment of 10~40°C without temperature control, and it has the characteristics of low power consumption, low cost and miniaturisation, which can be used as a sensing node in wireless sensing networks.

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Section: Introductionmentioning

confidence: 99%

A VCSEL-based temperature-adaptive FBG demodulation system

Zhang,

Wang,

Chi

et al. 2024

Fourth International Conference on Sensors and Information Technology (ICSI 2024)

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A high SNR system for intensity demodulation of fiber Bragg grating based on phase-locked loop

Huang

Zhang

et al. 2023

Optical Fiber Technology

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Application of FBG sensor in health monitoring of engineering building structure: a review

Zhou,

Jia,

Song

et al. 2024

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Purpose The aging and deterioration of engineering building structures present significant risks to both life and property. Fiber Bragg grating (FBG) sensors, acclaimed for their outstanding reusability, compact form factor, lightweight construction, heightened sensitivity, immunity to electromagnetic interference and exceptional precision, are increasingly being adopted for structural health monitoring in engineering buildings. This research paper aims to evaluate the current challenges faced by FBG sensors in the engineering building industry. It also anticipates future advancements and trends in their development within this field. Design/methodology/approach This study centers on five pivotal sectors within the field of structural engineering: bridges, tunnels, pipelines, highways and housing construction. The research delves into the challenges encountered and synthesizes the prospective advancements in each of these areas. Findings The exceptional performance of FBG sensors provides an ideal solution for comprehensive monitoring of potential structural damages, deformations and settlements in engineering buildings. However, FBG sensors are challenged by issues such as limited monitoring accuracy, underdeveloped packaging techniques, intricate and time-intensive embedding processes, low survival rates and an indeterminate lifespan. Originality/value This introduces an entirely novel perspective. Addressing the current limitations of FBG sensors, this paper envisions their future evolution. FBG sensors are anticipated to advance into sophisticated multi-layer fiber optic sensing networks, each layer encompassing numerous channels. Data integration technologies will consolidate the acquired information, while big data analytics will identify intricate correlations within the datasets. Concurrently, the combination of finite element modeling and neural networks will enable a comprehensive simulation of the adaptability and longevity of FBG sensors in their operational environments.

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A high efficient method for demodulation of FBG sensors

Cited by 5 publications

References 20 publications

A VCSEL-based temperature-adaptive FBG demodulation system

A VCSEL-based temperature-adaptive FBG demodulation system

A high SNR system for intensity demodulation of fiber Bragg grating based on phase-locked loop

Application of FBG sensor in health monitoring of engineering building structure: a review

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