Lossy mode resonance-based optical fiber humidity sensor

Zamarreño, Carlos R.; Hernáez, Miguel; Villar, Ignacio Del; Matı́as, Ignacio R.; Arregui, Francisco J.

doi:10.1109/icsens.2011.6127124

Cited by 4 publications

(6 citation statements)

References 12 publications

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“…The device developed in this work improves the sensitivity of previous devices [6-8, 13, 26-30], it is relatively simple to fabricate and it has a smaller FWHM than other devices based on LMRs [17,26]. Besides it has short response times, good linearity and low hysteresis.…”

Section: Introductionmentioning

confidence: 87%

“…Tin oxide has a relatively high refractive index; it is sensitive to changes on the relative humidity and besides it meets the requirements for generating LMRs. Several materials have been previously studied as LMR generators and as humidity sensors, most of them coating a plastic cladding removed optical fiber (200 µm), such as PAH/PAA [26], ITO [27], In2O3 [29,30], TiO2/PSS [13] and SnO2 [30] etc. obtaining the best sensitivity for [13], with values of 0.4 nm/%RH, 0.833 nm/%RH, 0.133 nm/%RH, 0.935 nm/%RH, 1.43 nm/%RH and 0.107 nm/RH respectively.…”

Section: Introductionmentioning

confidence: 99%

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High sensitivity humidity sensor based on cladding-etched optical fiber and lossy mode resonances

Ascorbe

Corres

Matı́as

2016

Sensors and Actuators B: Chemical

106

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In this work a high sensitivity optical fiber humidity sensor (OFHS) is presented. The configuration chosen for this purpose is a cladding-etched single mode optical fiber (CE-SMF) coated with a thin film of tin oxide (SnO2). The etching has been made using hydrofluoric acid (HF) and the coating has been fabricated by means of sputtering. Tin oxide was used to build the nano-coating which produces the Lossy Mode Resonance (LMR) and works as sensitive material. Theoretical and experimental results are shown and compared. The device was tested using a climatic chamber in order to obtain the response of the OFHS to relative humidity. Changes greater than 130 nm have been obtained for relative humidity varying from 20% to 90%, which gives a sensitivity of 1.9 nm/%RH.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

High sensitivity humidity sensor based on cladding-etched optical fiber and lossy mode resonances

Ascorbe

Corres

Matı́as

2016

Sensors and Actuators B: Chemical

106

View full text Add to dashboard Cite

show abstract

“…The fact of dealing with a (TiO 2 /PSS) thin-film is a good choice, since it has demonstrated to be quite sensitive to RH changes (Zamarreño et al 2011). However, what produces the higher shift in wavelength is the fact of working with CRMFs, since the possibility of accessing the evanescent field of the structure to couple light into the thin-film makes it possible to generate an LMR that is highly sensitive to SRI variations .…”

Section: Relative Humidity Measurementsmentioning

confidence: 99%

Single-mode—multimode—single-mode and lossy mode resonance-based devices: a comparative study for sensing applications

et al. 2015

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“…The previous research group also described the fabrication of optical fiber humidity sensors based on LMR using different materials such as ITO and agarose [ 79 ], SnO2 [ 80 ] and PAH-PAA [ 81 ].…”

Section: Humidity Sensorsmentioning

confidence: 99%

“…1870 s approx. 5250 s [ 77 ] FT200EMT Indium tin oxide (ITO) and agarose Dip coating and Boiling water method Optical fiber 225/200 μm 0.75 nm/%RH N/A N/A [ 79 ] FT200EMT Tin oxide (SnO 2 ) Dip coating Optical fiber 225/200 μm 0.107 nm/%RH N/A N/A [ 80 ] FT200EMT Polyallylamine hydrochloride (PAH) and polyacrylic acid (PAA) Layer-by-Layer Optical fiber 225/200 μm 0.37 nm/%RH N/A N/A [ 81 ] FT200EMT TiO 2 and poly(sodium 4-styrenesulfonate) (PSS) Layer-by-Layer Optical fiber 225/200 μm 1.43 nm/%RH for 1° resonance 0.97 nm/%RH for 2° N/A N/A [ 78 ] FT200EMT Polyallylamine hydrochloride (PAH) and polyacrylic acid (PAA) Layer-by-Layer Optical fiber 225/200 μm 0.51 nm/%RH...…”

Section: Humidity Sensorsmentioning

confidence: 99%

Fiber Optic Gas Sensors Based on Lossy Mode Resonances and Sensing Materials Used Therefor: A Comprehensive Review

Vitoria

Zamarreño

Ozcáriz

et al. 2021

Sensors

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Pollution in cities induces harmful effects on human health, which continuously increases the global demand of gas sensors for air quality control and monitoring. In the same manner, the industrial sector requests new gas sensors for their productive processes. Moreover, the association between exhaled gases and a wide range of diseases or health conditions opens the door for new diagnostic applications. The large number of applications for gas sensors has permitted the development of multiple sensing technologies. Among them, optical fiber gas sensors enable their utilization in remote locations, confined spaces or hostile environments as well as corrosive or explosive atmospheres. Particularly, Lossy Mode Resonance (LMR)-based optical fiber sensors employ the traditional metal oxides used for gas sensing purposes for the generation of the resonances. Some research has been conducted on the development of LMR-based optical fiber gas sensors; however, they have not been fully exploited yet and offer optimal possibilities for improvement. This review gives the reader a complete overview of the works focused on the utilization of LMR-based optical fiber sensors for gas sensing applications, summarizing the materials used for the development of these sensors as well as the fabrication procedures and the performance of these devices.

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Lossy mode resonance-based optical fiber humidity sensor

Cited by 4 publications

References 12 publications

High sensitivity humidity sensor based on cladding-etched optical fiber and lossy mode resonances

High sensitivity humidity sensor based on cladding-etched optical fiber and lossy mode resonances

Single-mode—multimode—single-mode and lossy mode resonance-based devices: a comparative study for sensing applications

Fiber Optic Gas Sensors Based on Lossy Mode Resonances and Sensing Materials Used Therefor: A Comprehensive Review

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