Fiber-optic Fabry-Perot hydrogen sensor coated with Pd-Y film

Yu, Caibin; Liu, Li; Chen, Xiaoxiao; Liu, Qunfeng; Gong, Yuan

doi:10.1007/s13320-015-0237-0

Cited by 19 publications

(12 citation statements)

References 12 publications

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“…The proposed sensor is compact, easy in fabrication, and has high potential for hydrogen detection. In the same year, Y. U. Caibin et al [63] proposed an IFPI hydrogen sensor. As shown in Fig.…”

Section: Mzi-based Sensormentioning

confidence: 99%

Recent advancements in optical fiber hydrogen sensors

Zhang

Peng

Qian

et al. 2017

Sensors and Actuators B: Chemical

176

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A review for optical fiber hydrogen sensors based on palladium (Pd) and tungsten oxide (WO 3) thin films is presented, with specific focus on the measurement methods, probe structures, and sensing properties of different sensors. Firstly, the theoretical models behind the optical fiber hydrogen sensors, as well as their practical limitations, are addressed. Secondly, four mainstream measurement methods, including intensity, fiber Bragg grating (FBG), interferometer, surface plasmon resonance (SPR), which have been proposed to sense the physicochemical properties variations of sensitive thin films when exposed to hydrogen, are reviewed. Then, the advantages and disadvantages of all the above measurement methods are also discussed and compared. Finally, the existing problems and future prospects of optical fiber hydrogen sensors are pointed out.

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Section: Mzi-based Sensormentioning

confidence: 99%

Recent advancements in optical fiber hydrogen sensors

Zhang

Peng

Qian

et al. 2017

Sensors and Actuators B: Chemical

176

View full text Add to dashboard Cite

show abstract

“…In these cases, the typical probe structures were associated to the intrinsic physicochemical characteristics of the sensing thin film that change according to the H 2 concentration, so the transmitted probe optical signal will also carry the corresponding signature through intensity evolutions [3][4][5][6][7][8][9][10] or wavelength shifts [11][12][13][14][15][16][17][18][19][20]. In addition, many other studies targeted the optical response modifications based on interferometers [21][22][23][24][25][26] or surface plasmon resonance [27][28][29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Distributed and discrete hydrogen monitoring through optical fiber sensors based on optical frequency domain reflectometry

Rizzolo¹,

Boukenter²,

Ouerdane³

et al. 2020

J. Phys. Photonics

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The potential of discrete and distributed fiber-based sensors exploiting the Rayleigh scattering signature of doped amorphous silica is investigated for the real time monitoring of molecular hydrogen (H 2 ) detection. We showed that the impact of the refractive index changes induced by the H 2 diffusion into the silica host matrix can be used to detect and quantify this gas presence through two approaches: first via the related fiber length variation and second through the observed spectral shift. Comparing the obtained results with H 2 diffusion calculations, we can estimate the sensor sensitivity thresholds to be ∼10 16 n molecule cm −3 for the distributed measurements (spatial resolution better than 1 mm) and below ∼10 19 n molecule cm −3 for the discrete-one. The presented architecture of the sensor is well adapted to the monitoring of slowly evolving H 2 concentrations such as the ones expected in nuclear waste repositories as the time response of the sensor remains limited by the diffusion of the gas within the optical fiber. These threshold values and time responses can be easily improved by optimizing the length, the composition and/or the geometry of the sensing fiber.

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“…For the SPR based hydrogen sensor, it receives continuously growing attentions due to its advantages of high sensitivity and rapid detection [8][9][10], but the production requirement and cost of the metallic film are relatively high. On the other hand, hydrogen sensors based on optical fiber interferometers have been much more popular, which include Mach-Zechnder interferometer [11][12][13], Fabry-Perot interferometer [14][15][16], and Sagnac interferometer [17][18][19]. Compared to other sensors, optical fiber interferometers have high sensitivity and flexible structure.…”

Section: Introductionmentioning

confidence: 99%

“…However, the interference spectrum of hydrogen sensor based on Mach-Zehnder interferometer is usually confusing due to multiple modes interfering with each other [11][12][13]. Hydrogen sensor based on Fabry-Perot interferometer has drawbacks in practical application, such as restriction on cavity size owing to coupling loss, large transmission loss, and offset of fiber end faces [14][15][16]. In contrast, hydrogen sensor based on Sagnac interferometer, also known as fiber loop mirror (FLM), has more simple structure and is easy to fabricate [17,18] In this paper, a hydrogen sensor based on high-birefringence fiber loop mirror (HBFLM) with Pd/WO 3 coating was proposed.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen sensor based on high-birefringence fiber loop mirror with sol-gel Pd/WO3 coating

Zhang

Peng

Zhou

et al. 2017

Sensors and Actuators B: Chemical

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A hydrogen sensor based on high-birefringence fiber loop mirror (HBFLM) with sol-gel Pd/WO 3 coating was demonstrated. The sensing structure was formed by inserting a section of polarization maintaining fiber (PMF) with Pd/WO 3 coating in fiber loop mirror. The Pd/WO 3 coating was prepared by sol-gel method and coated on PMF by dip-coating method, which is simple fabrication, low cost, and has good binding force with fiber. When the hydrogen concentration around Pd/WO 3 coating was changed, it would induce the strain change of polarization maintaining fiber, and then shift the interference spectrum of HBFLM. Therefore, the hydrogen concentration can be measured by monitoring the wavelength shift of the interference spectrum. Experimental results showed that the resonance wavelength had a blue shift with the increase of hydrogen concentration and the total shift of the resonance wavelength was ~2.18 nm within the concentration range of 0-1%. The sensor had simple structure, low cost, high sensitivity, good repeatability, and well stability.

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Fiber-optic Fabry-Perot hydrogen sensor coated with Pd-Y film

Cited by 19 publications

References 12 publications

Recent advancements in optical fiber hydrogen sensors

Recent advancements in optical fiber hydrogen sensors

Distributed and discrete hydrogen monitoring through optical fiber sensors based on optical frequency domain reflectometry

Hydrogen sensor based on high-birefringence fiber loop mirror with sol-gel Pd/WO3 coating

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