High-Sensitivity Distributed Temperature Sensor Based on Brillouin Scattering with Double-Coated Single-Mode Fibers

2020 ◽  
pp. 1-1
Author(s):  
Liqiang Qiu ◽  
Zongda Zhu ◽  
Tianfu Li ◽  
Dengwang Zhou ◽  
Yongkang Dong
Keyword(s):  
Temperature Sensor ◽  
Brillouin Scattering ◽  
High Sensitivity ◽  
Single Mode ◽  
Distributed Temperature Sensor

scholarly journals INVESTIGATING THE EFFECT OF TAPER LENGTH ON SENSITIVITY OF THE TAPERED-FIBER BASED TEMPERATURE SENSOR

2016 ◽  
Vol 78 (3) ◽  
Author(s):  
Baktiar Musa ◽  
Yasmin Mustapha Kamil ◽  
Muhammad Hafiz Abu Bakar ◽  
Ahmad Shukri Mohd Noor ◽  
Alyani Ismail ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Optimum Parameter ◽  
Low Cost ◽  
High Sensitivity ◽  
Single Mode ◽  
Careful Selection ◽  
Tapered Fiber ◽  
Tapered Optical Fiber ◽  
Good Repeatability ◽  
Selection Of

A temperature sensor using single-mode tapered fiber is presented. To better understand the behaviour of a tapered optical fiber, transmission experiments with different taper profiles, specifically waist length were performed. The effects of taper profiles on the sensitivity of the sensor were also investigated. It is demonstrated that careful selection of the taper profile can increase the sensitivity of the sensor. In our experiment, a good temperature sensing result was achieved using the optimum parameter. The best sensitivity achieved was 45.5 pm/°C that measured the range of temperature from 30°C to 120°C. The fabricated sensors are easy to fabricate and relatively low cost. Our results indicate that the tapered fiber based temperature sensor has high sensitivity and good repeatability.  

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

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 794 ◽  
Author(s):  
Tejaswi Tanaji Salunkhe ◽  
Dong Jun Lee ◽  
Ho Kyung Lee ◽  
Hyung Wook Choi ◽  
Sang Joon Park ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Temperature Sensitivity ◽  
Coating Thickness ◽  
Temperature Sensor ◽  
Coefficient Of Thermal Expansion ◽  
High Sensitivity ◽  
Single Mode ◽  
Solution Concentration ◽  
Air Bubble ◽  
Edge Surface

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.

Few mode fibers based quasi-single mode Raman distributed temperature sensor

2017 ◽  
Author(s):  
Hao Wu ◽  
Meng Wang ◽  
Tongqing Liu ◽  
Chen Yang ◽  
Weijun Tong ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Single Mode ◽  
Distributed Temperature Sensor

Design of large-mode-area single-mode optical fiber with lowing bending loss for Raman distributed temperature sensor

2013 ◽  
Vol 19 (6) ◽  
pp. 671-676 ◽  
Author(s):  
Zhiqiang Wang ◽  
Jiajia Ye ◽  
Chun-Liu Zhao ◽  
Zaixuan Zhang ◽  
Jianfeng Wang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Temperature Sensor ◽  
Single Mode ◽  
Large Mode Area ◽  
Single Mode Optical Fiber ◽  
Distributed Temperature Sensor ◽  
Bending Loss ◽  
Mode Area
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