Towards a Uniform Metrological Assessment of Grating-Based Optical Fiber Sensors: From Refractometers to Biosensors

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2017
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Abstract
A metrological assessment of grating-based optical fiber sensors is proposed with the aim of providing an objective evaluation of the performance of this sensor category. Attention was focused on the most common parameters, used to describe the performance of both optical refractometers and biosensors, which encompassed sensitivity, with a distinction between volume or bulk sensitivity and surface sensitivity, resolution, response time, limit of detection, specificity (or selectivity), reusability (or regenerability) and some other parameters of generic interest, such as measurement uncertainty, accuracy, precision, stability, drift, repeatability and reproducibility. Clearly, the concepts discussed here can also be applied to any resonance-based sensor, thus providing the basis for an easier and direct performance comparison of a great number of sensors published in the literature up to now. In addition, common mistakes present in the literature made for the evaluation of sensor performance are highlighted, and lastly a uniform performance assessment is discussed and provided. Finally, some design strategies will be proposed to develop a grating-based optical fiber sensing scheme with improved performance.
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chiavaioli2017biosensorstowards Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Francesco Chiavaioli;Carlos A. J. Gouveia;Pedro A. S. Jorge;Francesco Baldini;Chiavaioli, Francesco;Gouveia, Carlos A. J.;Jorge, Pedro A. S.;Baldini, Francesco;
Journal Biosensors
Year 2017
DOI 10.3390/bios7020023
URL
https://doi.org/10.3390/bios7020023
Keywords
Biosensor specificity limit of detection sensitivity resolution fiber bragg grating refractive index sensor optical fiber grating long period grating resonance-based device

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