An Optical Fiber Sensor for Axial Strain, Curvature, and Temperature Measurement Based on Single-Core Six-Hole Optical Fiber

Li, Yujian; Chen, Yu; Lü, Ping

doi:10.3390/s22041666

Cited by 11 publications

(5 citation statements)

References 31 publications

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“…For example, the maximum working temperature of polyimide can reach 300°C, whereas gold-plated material can reach 700°C, allowing the measurement range of the fiber sensor to be expanded. Bismuth ions had been shown in studies to emit fluorescence at ultra-low (liquid nitrogen) and ultra-high temperatures 25 . Hence, the temperature measurement range of the optical fiber sensor described in this work can be expanded to −200°C to 350°C, which has a broader application value.…”

Section: Resultsmentioning

confidence: 96%

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Optical fiber temperature sensor based on the fluorescence intensity ratio of bismuth–erbium co-doped optical fiber

et al. 2022

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. In our work, the temperature sensing properties and intrinsic mechanism based on a bismuth–erbium co-doped optical fiber (BEDF) were explored. Through temperature sensing experiments, we found that when the 980-nm pump laser was used, the fluorescence intensity ratio (FIR) at 1560 and 1435 nm showed a good linear relationship at different temperatures and its sensitivity reached 0.1151 dB/°C, the accuracy was 0.2°C, and the R2 of the FIR curve is about 0.9923. At the same time, we also proposed a detection algorithm to judge the working state of the sensor. By changing the BEDF coating material while the fiber is being fabricated, the temperature measurement range can be further improved. The optical fiber temperature sensor will have a broader range of applications.

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Section: Resultsmentioning

confidence: 96%

“…Bismuth ions had been shown in studies to emit fluorescence at ultra-low (liquid nitrogen) and ultra-high temperatures. 25 Hence, the temperature measurement range of the optical fiber sensor described in this work can be expanded to −200 °C to 350°C, which has a broader application value.…”

Section: Methodsmentioning

confidence: 99%

Optical fiber temperature sensor based on the fluorescence intensity ratio of bismuth–erbium co-doped optical fiber

et al. 2022

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“…In contrast, the 3m of fiber required by the in fiber and coupler-free PCF-MZI indicates a substantially better delay efficiency and offers various advantages, such as compactness and cost savings 22 . The PCFs -Mach Zehnder interferometer is an all-fiber device with enhanced thermal stability and effective optical sensing capabilities 23 . In-fiber free (PCF-MZI) applications are now mostly focused on optical sensing rather than communications, which is the fundamental goal of this effort 24,25 .…”

Section: Introductionmentioning

confidence: 99%

Estimating concentration of toxic ions Arsenic in water by using Photonic Crystal Fiber based on Surface Plasmon Resonance (SPR)

Jassam

Ahmed²

2023

Baghdad Sci.J

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In this work, an enhanced Photonic Crystal Fiber (PCF) based on Surface Plasmon Resonance (SPR) sensor using a sided polished structure for the detection of toxic ions Arsenic in water was designed and implemented. The SPR curve can be obtained by polishing the side of the PCF after coating the Au film on the side of the polished area, the SPR curve can be obtained. The proposed sensor has a clear SPR effect, according to the findings of the experiments. The estimated signal to Noise Ratio (SNR), sensitivity (S), resolution (R), and Figures of merit (FOM) are approaching; the SNR is 0.0125, S is 11.11 μm/RIU, the resolution is 1.8x〖10〗^(-4), and the FOM is 13.88 for Single-mode Fiber- Photonic Crystal Fiber- single mode Fiber (SMF-PCF-SMF). While the effective performance parameters for Multi-Mode Fiber- Photonic Crystal Fiber- Multi-Mode Fiber (MMF-PCF-MMF) such as the sensitivity is approaching 9.5 μm/RIU, SNR is 0.0173, FOM is10.86 and the resolution is 4x〖10〗^(-4) is achieved. The concentrations were calculated practically and theoretically for each of the sensors, and it was found that the practical concentrations that were obtained are close or equal to the concentrations that were theoretically obtained through the dilution law, where the concentrations were obtained 0.096, 0.15, 0.26, 0.38, 0.49 practically and 0.1, 0.2 and 0 3, 0.4 and 0.5 theoretically For SMF-PCF-SMS, concentrations of 0.089, 0.16, 0.23, 0.34, and 0.45 were practically obtained, and 0.1, 0.2, 0.3, 0.4, and 0.5 theoretically for MMF-PCF-MMF. The suggested sensor has a strong mechanical structure, low cost, and easy fabrication, allowing it to provide a greater measurement range and action area to the measured samples without lengthening the sensor.

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“…These are available in silica and plastic materials. In recent years, their use in detecting various physical processes, i.e., in sensor technology, has increased significantly [ 3 , 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Design and Characterisation of an Optical Fibre Dosimeter Based on Silica Optical Fibre and Scintillation Crystal

Jelínek

Lazar

Mikel

2022

Sensors

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In nuclear power plants, particle accelerators, and other nuclear facilities, measuring the level of ionising gamma radiation is critical for the safety and management of the operation and the environment’s protection. However, in many cases, it is impossible to monitor ionising radiation directly at the required location continuously. This is typically either due to the lack of space to accommodate the entire dosimeter or in environments with high ionising radiation activity, electromagnetic radiation, and temperature, which significantly shorten electronics’ lifetime. To allow for radiation measurement in such scenarios, we designed a fibre optic dosimeter that introduces an optical fibre link to deliver the scintillation radiation between the ionising radiation sensor and the detectors. The sensors can thus be placed in space-constrained and electronically hostile locations. We used silica optical fibres that withstand high radiation doses, high temperatures, and electromagnetic interference. We use a single photon counter and a photomultiplier to detect the transmitted scintillation radiation. We have shown that selected optical fibres, combined with different scintillation materials, are suitable for measuring gamma radiation levels in hundreds of kBq. We present the architecture of the dosimeter and its experimental characterisation with several combinations of optical fibres, detectors, and scintillation crystals.

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An Optical Fiber Sensor for Axial Strain, Curvature, and Temperature Measurement Based on Single-Core Six-Hole Optical Fiber

Cited by 11 publications

References 31 publications

Optical fiber temperature sensor based on the fluorescence intensity ratio of bismuth–erbium co-doped optical fiber

Optical fiber temperature sensor based on the fluorescence intensity ratio of bismuth–erbium co-doped optical fiber

Estimating concentration of toxic ions Arsenic in water by using Photonic Crystal Fiber based on Surface Plasmon Resonance (SPR)

Design and Characterisation of an Optical Fibre Dosimeter Based on Silica Optical Fibre and Scintillation Crystal

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