Fiber bragg grating FBG as temperature sensor for the human body in review

Ali, Wasan; Murdas, Ibrahim A.

doi:10.1063/5.0111199

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…From material strain monitoring to sonar, FBGs have already been demonstrated to be extremely versatile and cost-effective solutions [2][3][4] . Of recent interest is their growing use in chemical monitoring, where they offer a low-cost, compact, yet highly sensitive options in the development of new gas detectors [4][5][6] .…”

Section: Introductionmentioning

confidence: 99%

Cross-Correlation Using a Complex Aperiodic FBG: A New Technique for Gas Detection

Rahme,

Tuthill,

Betters

et al. 2023

Preprint

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Optical cross-correlation is a technique that can achieve both high specificity and high sensitivity when deployed as the basis for a sensing technology. Offering significant gains in cost, size and complexity, it can also deliver significantly higher signal-to-noise ratios than traditional approaches such as absorption methodologies. In this paper, we present an optical cross-correlation technology constructed around a bespoke customised Fiber Bragg Grating (FBG). Exploiting the remarkable flexibility in design enabled by multiple aperiodic Bragg gratings, optical filters are devised that exactly mimic the absorption features of a target gas species (for this paper, acetylene C2H2) over some waveband of interest. This grating forms the heart of the sensor architecture described here that employs modulated optical cross-correlation for gas detection. An experimental demonstration of this approach is presented, and shown to be capable of differentiating between different concentrations of the C2H2 target gas.Furthermore these measurements are shown to be robust against interloper species, with minimal impact on the detection signal-to-noise arising from the introduction of contaminant gases. This represents is a significant step toward the use of customised FBGs as low-cost, compact, and highly customisable photonic devices for deployment in gas detection.

show abstract

Section: Introductionmentioning

confidence: 99%

Cross-Correlation Using a Complex Aperiodic FBG: A New Technique for Gas Detection

Rahme,

Tuthill,

Betters

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

A new gas detection technique through cross-correlation with a complex aperiodic FBG

Rahme,

Tuthill,

Betters

et al. 2024

Sci Rep

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Optical cross-correlation is a technique that can achieve both high specificity and high sensitivity when deployed as the basis for a sensing technology. Offering significant gains in cost, size and complexity, it can also deliver significantly higher signal-to-noise ratios than traditional approaches such as absorption methodologies. In this paper, we present an optical cross-correlation technology constructed around a bespoke customised Fiber Bragg Grating (FBG). Exploiting the remarkable flexibility in design enabled by multiple aperiodic Bragg gratings, optical filters are devised that exactly mimic the absorption features of a target gas species (for this paper, acetylene $$C_2H_2$$ C 2 H 2 ) over some waveband of interest. This grating forms the heart of the sensor architecture described here that employs modulated optical cross-correlation for gas detection. An experimental demonstration of this approach is presented, and shown to be capable of differentiating between different concentrations of the $$C_2H_2$$ C 2 H 2 target gas. Furthermore these measurements are shown to be robust against interloper species, with minimal impact on the detection signal-to-noise arising from the introduction of contaminant gases. This represents is a significant step toward the use of customised FBGs as low-cost, compact, and highly customisable photonic devices for deployment in gas detection.

show abstract

Fiber bragg grating FBG as temperature sensor for the human body in review

Cited by 2 publications

References 22 publications

Cross-Correlation Using a Complex Aperiodic FBG: A New Technique for Gas Detection

Cross-Correlation Using a Complex Aperiodic FBG: A New Technique for Gas Detection

A new gas detection technique through cross-correlation with a complex aperiodic FBG

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