Microstructured PMMA POF chirped Bragg gratings for strain sensing

Min, Rui; Ortega, B.; Broadway, Christian; Hu, Xuehao; Caucheteur, Christophe; Bang, Ole; Antunes, Paulo; Marques, Carlos

doi:10.1016/j.yofte.2018.08.016

Cited by 31 publications

(12 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A point-based sensor has the ability of multiplexing, which can be used in distributed sensing of external perturbations. Depending on the gratings formed, fiber Bragg gratings can be uniform FBG, 3 chirped FBG, 23,24 tilted FBG, 25,26 long grating fiber, [27][28][29] phase-shifted FBG, 30,31 or super-structured FBG. 19 These gratings are usually inscribed in silica-based fiber but many research studies have been carried out on inscribing FBG in microstructured optical fiber (MOF) forming a microstructure FBG 32,33 or polymer-based FBG 34 that can offer unique Sahota, Gupta and Dhawan: Fiber Bragg grating sensors for monitoring of physical parameters.…”

Section: Optical Engineeringmentioning

confidence: 99%

Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review

2020

View full text Add to dashboard Cite

Fiber Bragg grating has embraced the area of fiber optics since the early days of its discovery, and most fiber optic sensor systems today make use of fiber Bragg grating technology. Researchers have gained enormous attention in the field of fiber Bragg grating (FBG)-based sensing due to its inherent advantages, such as small size, fast response, distributed sensing, and immunity to the electromagnetic field. Fiber Bragg grating technology is popularly used in measurements of various physical parameters, such as pressure, temperature, and strain for civil engineering, industrial engineering, military, maritime, and aerospace applications. Nowadays, strong emphasis is given to structure health monitoring of various engineering and civil structures, which can be easily achieved with FBG-based sensors. Depending on the type of grating, FBG can be uniform, long, chirped, tilted or phase shifted having periodic perturbation of refractive index inside core of the optical fiber. Basic fundamentals of FBG and recent progress of fiber Bragg grating-based sensors used in various applications for temperature, pressure, liquid level, strain, and refractive index sensing have been reviewed. A major problem of temperature cross sensitivity that occurs in FBG-based sensing requires temperature compensation technique that has also been discussed in this paper.

show abstract

Section: Optical Engineeringmentioning

confidence: 99%

Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review

2020

View full text Add to dashboard Cite

show abstract

“…However, strain sensing under variable temperature and humidity conditions is always an issue for POF sensing. Min et al [116] demonstrated that the effective bandwidth of the tunable chirped POFBG is highly dependent on the strain, and remains practically constant with temperature and humidity changes, which can be used in combination with wavelength measurement, as shown in Figure 11, to develop strain sensors under temperature-and humidity-variable environments. The strain sensitivity is 9.02 ± 0.02 pm/µε, which is higher than previous results [109] due to larger etching [92].…”

Section: Applicationsmentioning

confidence: 99%

“…(a) Reflected spectral power vs strain, (b) wavelength shift vs strain, and (c) bandwidth vs strain; image adapted from[116].…”

mentioning

confidence: 99%

Latest Achievements in Polymer Optical Fiber Gratings: Fabrication and Applications

2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Methyl methacrylate (PMMA) is commonly the material which mPOFs are made of. Sensors for humidity [26] and strain [27] measurements based on mPOF are reported in the bibliography. The most relevant advantages of this kind of fibers are low Young's modulus, ease of handling, biological compatibility and flexibility even for large diameters such as 1 mm [28].…”

Section: Introductionmentioning

confidence: 99%

Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

López-Torres

Elosúa

Arregui

2020

Sensors

View full text Add to dashboard Cite

Since the first publications related to microstructured optical fibers (MOFs), the development of optical fiber sensors (OFS) based on them has attracted the interest of many research groups because of the market niches that can take advantage of their specific features. Due to their unique structure based on a certain distribution of air holes, MOFs are especially useful for sensing applications: on one hand, the increased coupling of guided modes into the cladding or the holes enhances significantly the interaction with sensing films deposited there; on the other hand, MOF air holes enhance the direct interaction between the light and the analytes that get into in these cavities. Consequently, the sensitivity when detecting liquids, gasses or volatile organic compounds (VOCs) is significantly improved. This paper is focused on the reported sensors that have been developed with MOFs which are applied to detection of gases and VOCs, highlighting the advantages that this type of fiber offers.

show abstract

Microstructured PMMA POF chirped Bragg gratings for strain sensing

Cited by 31 publications

References 26 publications

Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review

Fiber Bragg grating sensors for monitoring of physical parameters: a comprehensive review

Latest Achievements in Polymer Optical Fiber Gratings: Fabrication and Applications

Optical Fiber Sensors Based on Microstructured Optical Fibers to Detect Gases and Volatile Organic Compounds—A Review

Contact Info

Product

Resources

About