Temperature-Insensitive Hydrogen Sensor With Polarization-Maintaining Photonic Crystal Fiber-Based Sagnac Interferometer

Yang, Yuanhong; Yang, Fuling; Wang, Huan; Yang, Wei; Jin, Wei

doi:10.1109/jlt.2014.2375362

Cited by 32 publications

(17 citation statements)

References 17 publications

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“…Birefringence is one of the key parameters that is beneficial and advantageous for various applications of optical fibers. Birefringence is defined as the absolute difference of effective refractive index of x and y polarized fundamental modes [17][18][19]:…”

Section: Design and Methodologymentioning

confidence: 99%

“…On the other hand, PCF structures in the terahertz spectrum are proposed theoretically for sensing blood components [16] and analytes such as ethanol and benzyne. Birefringence feature is commonly intended for polarization control in fiber based optical sensors and devices [17]. Additionally, highly birefringent fibers are emerging the polarization mode interference [18][19].…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Sensing of Dual Analyte Photonic Crystal Fiber Based Liquid Sensor

Ademgil¹

2019

Balkan Journal of Electrical and Computer Engineering

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This article proposes three novel models of photonic crystal fiber (PCF) based dual liquid sensor. The performances of Z-Model, X-Model, and V-Model structures have been evaluated by applying the well-known full vectorial finite element method (FV-FEM) where boundaries are defined with perfectly matched layers (PMLs). The proposed models have been investigated with two types of analyte arrangements (A-Type and B-Type) in the core region. The birefringence and the sensitivity levels of proposed sensors have been studied where core holes are filled with water (n=1.33) and ethanol (n= 1.354). Our numerical results have shown that X-Model and Z-Model of A-Type sensor is an ideal structure for water and ethanol sensing, respectively.

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Section: Design and Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simultaneous Sensing of Dual Analyte Photonic Crystal Fiber Based Liquid Sensor

Ademgil¹

2019

Balkan Journal of Electrical and Computer Engineering

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“…Compared to Ref. [17,18], the proposed sensor was low cost, simple fabrication, and has a relatively high sensitivity. It should be mentioned that the sensitivity decreases as the hydrogen concentration increases which may be due to the hydrogen absorption of Pd/WO 3 reach to saturation when the hydrogen concentration is too high or ambient temperature changes.…”

Section: Methodsmentioning

confidence: 99%

“…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%

“…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. The Pd/WO 3 fabricated by sol-gel method acted as the sensitive material to the ambient hydrogen.…”

Section: Introductionmentioning

confidence: 99%

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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 Grating Hydrogen Sensor: Progress, Challenge and Prospect

Ping,

Cao,

Cao

et al. 2023

Advanced Sensor Research

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Hydrogen is a kind of clean and sustainable energy source and arises wide attention in industrial and commercial scenarios. The utilization of hydrogen in safety is eternal theme, thereby it is important to detect hydrogen quickly and accurately in production, use and storage stage. This review focuses on the fiber grating hydrogen sensor, which depicts a great promising for industrial application, introduces the up‐to‐date progress and provides new insight for scale use. Starting with an overview of the sensing mechanism of hydrogen‐sensitive material, then this paper briefly introduces the working principle of fiber grating hydrogen sensor. After that, design and optimization methods for fiber grating hydrogen sensor are emphatically summarizes from viewpoints of sensor structure, hydrogen‐sensitive material, and sensor durability. Last, the challenges of fiber grating hydrogen sensor for practical applications are demonstrated and the future prospects are also put forward, namely the depth investigation in structure, material, key fabrication technology and environmental adaptability of sensor.

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Temperature-Insensitive Hydrogen Sensor With Polarization-Maintaining Photonic Crystal Fiber-Based Sagnac Interferometer

Cited by 32 publications

References 17 publications

Simultaneous Sensing of Dual Analyte Photonic Crystal Fiber Based Liquid Sensor

Simultaneous Sensing of Dual Analyte Photonic Crystal Fiber Based Liquid Sensor

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

Fiber Grating Hydrogen Sensor: Progress, Challenge and Prospect

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