Investigation of the fundamental behavior of long-period grating sensors

Keith, Jason; Puckett, Sean D.; Pacey, G.E.

doi:10.1016/s0039-9140(03)00318-7

Cited by 11 publications

(5 citation statements)

References 5 publications

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“…In 2003, Keith et al investigated the performance of bare (uncoated) LPG fibre sensors fabricated without any sensitive material for measurement of standard RI solutions and mixtures of methanol and ethanol [ 77 ]. Initially, they tested the sensor’s performance using standard RI mixtures, but also measured the temperature dependence of the sensor and repeatability of their results.…”

Section: Optical Fibre Sensing Methodsmentioning

confidence: 99%

A Review of Optical Fibre Ethanol Sensors: Current State and Future Prospects

Memon

Wang

Strunz

et al. 2022

Sensors

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A range of optical fibre-based sensors for the measurement of ethanol, primarily in aqueous solution, have been developed and are reviewed here. The sensing approaches can be classified into four groups according to the measurement techniques used, namely absorption (or absorbance), external interferometric, internal fibre grating and plasmonic sensing. The sensors within these groupings can be compared in terms of their characteristic performance indicators, which include sensitivity, resolution and measurement range. Here, particular attention is paid to the potential application areas of these sensors as ethanol production is globally viewed as an important industrial activity. Potential industrial applications are highlighted in the context of the emergence of the internet of things (IoT), which is driving widespread utilization of these sensors in the commercially significant industrial and medical sectors. The review concludes with a summary of the current status and future prospects of optical fibre ethanol sensors for industrial use.

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Section: Optical Fibre Sensing Methodsmentioning

confidence: 99%

A Review of Optical Fibre Ethanol Sensors: Current State and Future Prospects

Memon

Wang

Strunz

et al. 2022

Sensors

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“…To detect any molecular elements, the LPG surface needs to be functionalized by e. g. enzymes [5], gold nanoparticles [6], antibodies [7] or cross-linking bioreceptors [8]. The LPG is an optical periodic structure, where transmission spectrum consists of the resonance dips at discrete wavelength [9]. When it comes to achieve very sensitive structure, the LPG should work close to the turning point, where the dual-resonance appears.…”

Section: Introductionmentioning

confidence: 99%

Dual-Resonance Long Period Grating in Fiber Loop Mirror Based Platform for Cheap Biomedical Sample Detection with High Resolution

Zawisza

Jaroszewicz

Celebańska

et al. 2018

BJSTR

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A dual-resonance long period grating (DR-LPG) embedded in fiber loop mirror (FLM) was employed as a sample for the development of the biosensor application. The DR-LPG) acts as a sensing part for biological molecules detection, whereas FLM enhances the rapid signal monitoring, which oversees the wavelength filtering properties. Herein, the DR-LPG surface was functionalized with biotin in terms of the avidin binding reaction detection. The detection mechanism is based on the alteration the refractive index of the DR-LPG surrounding monitored by the tracking interference dips changing. Moreover, by applying a broadband diode and photodetector we ensured the low-cost of the system.

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“…Concentrations for many solutions (ethylene glycol (Chong et al , 2004), salt (Chong et al , 2004), sugar (Chong et al , 2004), chloride ion (Falciai et al , 2001), glucose (Kim et al , 2005), antifreezer (Partrick et al , 1998), alcohol (Zhang and Sirkis, 1997), methylcyclohexane (Zhang and Sirkis, 1997), n‐hexaldehyde (Zhang and Sirkis, 1997), dimethyl sulfoxide (Hochreiner et al , 2008), copper ion (Keith et al , 2003), dimethyl benzene (Allsop et al , 2001) and hydrocarbon (Falate et al , 2005)) have been measured based on long period fiber grating sensors. Determinations of hydrogen (Wei et al , 2008; Tang et al , 2009), toluol (Zhang et al , 2008; Topliss et al , 2010), C 2 H 5 OH (Gu et al , 2006), CO 2 (Kumar et al , 2004), and on‐line monitoring of humidity (Tan et al , 2005), torsion (Rao et al , 2006) and so on, all can be realized by the use of LPG sensor.…”

Section: Introductionmentioning

confidence: 99%

A combined long period fiber grating multi‐parameter sensor

Zhan

et al. 2013

Sensor Review

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PurposeThe on‐line concentration and temperature measurement of solutions is of great interest as a means of quality production control in many industrial processes, such as in food service industry, pharmaceuticals industry, chemical industry and environmental engineering, especially for harmful solutions or solutions that cannot be reached by the operator. This paper seeks to address these issues.Design/methodology/approachA high resolution all‐fiber multi‐parameter sensor system has been studied theoretically and experimentally. The sensor system can be used for on‐line monitoring of concentration and temperature simultaneously and dynamically. A combined long period fiber grating (CLPG) is used as the sensor head based on its resonance wavelength shifts being almost linearly with concentration and temperature, and also based on that the two applied resonance peaks have different concentration‐wavelength coefficients and different temperature‐wavelength coefficients. Two wavelength‐matched fiber Bragg gratings (FBGs) are used to convert resonance peak wavelengths of the CLPG into corresponding intensities for interrogation.FindingsWhen the concentration and the temperature all fluctuate dynamically during experiments, a concentration resolution of 0.03 g/L has been achieved in the range of 0∼200 g/L, and a temperature resolution of 0.02C has been realized in the range of −20∼60C.Originality/valueOn‐line monitoring of concentration and temperature for solutions is a means of quality production control in biological, chemical and other many industrial processes, such as in food service industry, pharmaceuticals industry, chemical industry, and also in environmental engineering, especially for harmful solutions or solutions that cannot be reached by the operator. Optical fiber sensors have numerous advantages over traditional sensors, such as immunity to electromagnetic interference, higher stability and sensitivity, more easiness of multiplex, being competent for application in harsh environments, “smart structures” and on‐site measurements. Long period optical fiber grating sensor is the most appropriate sensor for multi‐parameter monitoring in the fields mentioned above, which has all the advantages of optical fiber sensor. Besides, optical fiber grating sensors can be used for monitoring more accurately because its signal is coded by wavelength. The all‐fiber sensor system is suitable for remote monitoring of many solutions, such as the solutions of NaCl, glucose, alcohol, and hydrocarbon.

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Investigation of the fundamental behavior of long-period grating sensors

Cited by 11 publications

References 5 publications

A Review of Optical Fibre Ethanol Sensors: Current State and Future Prospects

A Review of Optical Fibre Ethanol Sensors: Current State and Future Prospects

Dual-Resonance Long Period Grating in Fiber Loop Mirror Based Platform for Cheap Biomedical Sample Detection with High Resolution

A combined long period fiber grating multi‐parameter sensor

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