Home / Low-temperature performance parameters of fiber Bragg gratings
Fiber Bragg Gratings or FBGs have achieved significant attention towards sensing and communication applications due to their outstanding advantages. Due to its high sensitivity towards
This paper presents a novel super absorbent polymer (SAP)-coated ultra-weak fiber Bragg grating (UWFBG) strain sensing cable for enhanced water leakage detection and localization in
Carbon fiber-reinforced polymer (CFRP) materials are susceptible to latent structural damages such as delamination and matrix cracking, which can compromise their integrity and
A variation of the period of the grating inscripted in a fiber optic – induced by mechanical or thermal perturbation – causes a shift of the reflected peak wavelength, due to the related optical path length
We demonstrate the use of fiber Bragg gratings (FBGs) as a monolithic temperature sensor from ambient to liquid nitrogen temperatures, without the use of any auxiliary embedding structure.
In this study, the effects of FBG parameters such as grating length, Bragg wavelength, and reflection rate on temperature sensitivity have been investigated considering there are no strain
Abstract: We demonstrate the use of fiber Bragg gratings (FBGs) as a monolithic temperature sensor from ambient to liquid nitrogen temperatures, without the use of any auxiliary embedding...
In this paper, we present a design framework for micro-engineering the temperature coefficients of FBGs over specified temperature ranges, while maintaining low loss and good spectral
The fiber Bragg grating (FBG) sensors have some additional advantages over conventional electrochemical sensors, such as low
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Table 9 presents a concise comparison of key performance parameters, such as temperature sensitivity, pressure sensitivity, and strain
A miniature and all-optical fiber sensor based on integration of Fabry–Perot interferometer (FPI) and fiber Bragg grating (FBG) is proposed and experimentally demonstrated for simultaneous
In this paper, a novel fiber-optic sensing system based on fiber Bragg gratings (FBGs) to measure foot plantar pressure is proposed. This study first explores the Pedar-X insole foot pressure types of the
Fiber Bragg Grating (FBG) sensors have found wide application in monitoring various aspects of bridge deformation, providing detailed and real-time insights essential for structural health management.
In sensing applications, the main performance parameters depend on the application and the time scale of the measurement. For static, long term, low frequency applications (e.g. temperature/pressure
However, these sensors often suffer from the drawbacks of temperature cross-sensitivity or low sensitivity. In contrast, tilted fiber Bragg grating (TFBG) sensors can overcome many of these
Three fiber Bragg grating (FBG) sensors are arranged near the negative electrode, near the positive electrode, and in the middle of the battery, respectively. Strains at multiple positions are
Map temperature profiles with high spatial resolution (down to 0.65 mm)Small, lightweight and flexible fiber sensorsDistributed sensors up to 100 m (per
In this study, we propose a novel soft system (SS) based on one fiber Bragg grating sensor (FBG) embedded in a soft polymeric matrix for LOR detection during the epidural puncture. The SS was
Bragg gratings manufactured by several different techniques are compared to demonstrate their suitability for different types of sensing applications. Several application focused examples are also
This paper reports an optical fiber toluene sensor based on whispering gallery mode (WGM) microbottle resonator. The sensor includes a single-mode fib
In this paper, our objective is to review the various techniques to measure the temperature and strain using FBGs in different industrial sectors. An In-depth analysis of FBG is also incorporated
Advances in sensing, including vibration analysis, acoustic emission, piezoelectric transducers, and fiber Bragg grating sensors, are critically analyzed in terms of their physical
Here, we present a comprehensive overview of the historic developments and recent advances in fs laser direct writing of FBGs. The grating
Two fiber Bragg gratings directly written in the Dy-doped fiber form the 3.24 μm laser cavity to provide a spectrally controlled laser output.
This paper aims to enhance the performance characteristics of FBG sensors for temperature measurement by proposing a specific design of their parameters, thus facilitating their
The experimental setup employed polarization-maintaining ytterbium-doped fibers and a combination of different fiber Bragg gratings to achieve high mode purity and stable output.
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