High-Sensitivity Gas-Pressure Sensor Based on Fiber-Tip PVC Diaphragm Fabry–Pérot Interferometer

Zhang, Zhe; Liao, Changrui; Tang, Jian; Bai, Zhiyong; Guo, Kuikui; Hou, Maoxiang; He, Jun; Wang, Ying; Liu, Shen; Zhang, Feng; Wang, Yiping

doi:10.1109/jlt.2017.2710210

Cited by 72 publications

(36 citation statements)

References 29 publications

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“…Most of the polymer coated sensors could be operated below 80 • C. Conversely, a PS coated temperature sensor could be operated up to 100 • C with good stability. The temperature sensitivity in a wide range achieved herein is much higher than previously reported values [21,33,42]. Moreover, the sensor with thick PS coating (8.0 µm) demonstrates higher temperature resolution than those of the sensors with PVA, NOA-61, PVC, and PC based on the values of FSR and TOC of the polymers [46,47].…”

Section: Resultscontrasting

confidence: 50%

“…Therefore, the value of r 2 was strongly related to the interference spectra. PS is a thermosensitive polymer with diverse benefits, including versatility, simple fabrication, and inexpensive processing, and is thus considered as an excellent choice for thermo-optic sensors [42]. The thermosensitive properties of the fabricated sensors were characterized by changing the temperature.…”

Section: Resultsmentioning

confidence: 99%

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Enhancing Temperature Sensitivity of the Fabry–Perot Interferometer Sensor with Optimization of the Coating Thickness of Polystyrene

Salunkhe

Lee

et al. 2020

Sensors

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The exploration of novel polymers for temperature sensing with high sensitivity has attracted tremendous research interest. Hence, we report a polystyrene-coated optical fiber temperature sensor with high sensitivity. To enhance the temperature sensitivity, flat, thin, smooth, and air bubble-free polystyrene was coated on the edge surface of a single-mode optical fiber, where the coating thickness was varied based on the solution concentration. Three thicknesses of the polystyrene layer were obtained as 2.0, 4.1, and 8.0 μm. The temperature sensor with 2.0 μm thick polystyrene exhibited the highest temperature sensitivity of 439.89 pm °C−1 in the temperature range of 25–100 °C. This could be attributed to the very uniform and thin coating of polystyrene, along with the reasonable coefficient of thermal expansion and thermo-optic coefficient of polystyrene. Overall, the experimental results proved the effectiveness of the proposed polystyrene-coated temperature sensor for accurate temperature measurement.

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Section: Resultscontrasting

confidence: 50%

Section: Resultsmentioning

confidence: 99%

Enhancing Temperature Sensitivity of the Fabry–Perot Interferometer Sensor with Optimization of the Coating Thickness of Polystyrene

Salunkhe

Lee

et al. 2020

Sensors

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“…Another advantage that optical fiber offers is that silica surfaces can be easily modified in order to allow the deposition of different materials such as polymers [25], polyelectrolytes [26], or even biochemical species [27]. Furthermore, the properties of the deposited materials can be tailored in a nanometric scale [28], which enables the fabrication of custom-made sensors.…”

Section: Introductionmentioning

confidence: 99%

Development of an Aptamer Based Luminescent Optical Fiber Sensor for the Continuous Monitoring of Hg2+ in Aqueous Media

Elosúa

Arregui

2020

Sensors

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A fluorescent optical fiber sensor for the detection of mercury (Hg2+) ions in aqueous solutions is presented in this work. The sensor was based on a fluorophore-labeled thymine (T)-rich oligodeoxyribonucleotide (ON) sequence that was directly immobilized onto the tip of a tapered optical fiber. In the presence of mercury ions, the formation of T–Hg2+-T mismatches quenches the fluorescence emission by the labeled fluorophore, which enables the measurement of Hg2+ ions in aqueous solutions. Thus, in contrast to commonly designed sensors, neither a fluorescence quencher nor a complementary ON sequence is required. The sensor presented a response time of 24.8 seconds toward 5 × 10−12 M Hg2+. It also showed both good reversibility (higher than the 95.8%) and selectivity: the I0/I variation was 10 times higher for Hg2+ ions than for Mn2+ ions. Other contaminants examined (Co2+, Ag+, Cd2+, Ni2+, Ca2+, Pb2+, Mn2+, Zn2+, Fe3+, and Cu2+) presented an even lower interference. The limit of detection of the sensor was 4.73 × 10−13 M Hg2+ in buffer solution and 9.03 × 10−13 M Hg2+ in ultrapure water, and was also able to detect 5 × 10−12 M Hg2+ in tap water.

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“…With the advantages of immunity to electromagnetic interference, fast signal acquisition, high sensitivity and compact structure, optical fiber sensors have been extensively investigated for gas pressure sensing. A variety of optical fiber pressure sensors based on various types of fiber components, including long-period fiber gratings (LPFGs) [1][2][3][4][5][6], fiber Bragg gratings (FBGs) [7][8][9][10][11], and fiber interferometers [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] have been proposed in recent years. LPFGs inscribed in single-mode fiber (SMF) [1], photonic crystal fiber [2][3][4], polymer micro-structured fiber [5], boron co-doped optical fiber [6] and FBGs inscribed in single-mode fiber [7,8], side-hole fiber [9], air-hole micro-structured fiber [10,11], have been used as gas pressure sensors, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…The fiber interferometers based gas pressure sensors, by contrast, are attractive due to their high sensitivity. Fabry-Perot interferometers (FPIs) constructed with different fibers including hollow-core micro-structured fibers [12,13] and capillaries [14,15] have been proposed as gas pressure sensors, or various diaphragm materials, such as silica [16][17][18][19], polymers [20,21], silver [22,23], and graphene [24], have been employed as sensitive films to construct diaphragm-based FPIs to achieve high sensitivity in gas pressure measurement. And the silver diaphragm based FPI [23] has exhibited an ultrahigh gas pressure sensitivity of 70.5 nm/kPa in forms of cavity length variation, however, the poor mechanical property makes it unsuitable for high pressure sensing.…”

Section: Introductionmentioning

confidence: 99%

High-sensitivity gas pressure sensor based on hollow-core photonic bandgap fiber Mach-Zehnder interferometer

et al. 2018

Self Cite

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We propose and experimentally demonstrate a highly sensitive gas pressure sensor based on a near-balanced Mach-Zehnder interferometer (MZI) and constructed by hollowcore photonic bandgap fiber (HC-PBF) in this paper. The MZI is simply constructed by fusion splicing two HC-PBFs, which are of slightly different lengths, between two 3-dB couplers. The two output ends of each coupler are approximately equal in length, to ensure that the optical path variations of the MZI only result from the differences in the lengths between the two HC-PBFs. To apply the MZI for gas pressure sensing, a femtosecond laser is employed to drill a micro-channel in one of the two HC-PBF arms. The experiment result shows that the proposed MZI based gas pressure sensor achieves an ultrahigh sensitivity, up to 2.39 nm/kPa, which is two orders of magnitude higher than that of the previously reported MZI-based gas pressure sensors. Additionally, the effects resulting from the absolute length and relative length of the two HC-PBFs on gas pressure sensing performance are also investigated experimentally and theoretically, respectively. The ultra-high sensitivity and ease of fabrication make this device suitable for gas pressure sensing in the field of industrial and environmental safety monitoring.

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High-Sensitivity Gas-Pressure Sensor Based on Fiber-Tip PVC Diaphragm Fabry–Pérot Interferometer

Cited by 72 publications

References 29 publications

Enhancing Temperature Sensitivity of the Fabry–Perot Interferometer Sensor with Optimization of the Coating Thickness of Polystyrene

Enhancing Temperature Sensitivity of the Fabry–Perot Interferometer Sensor with Optimization of the Coating Thickness of Polystyrene

Development of an Aptamer Based Luminescent Optical Fiber Sensor for the Continuous Monitoring of Hg2+ in Aqueous Media

High-sensitivity gas pressure sensor based on hollow-core photonic bandgap fiber Mach-Zehnder interferometer

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