scholarly journals High sensitivity temperature sensor based on a polymer filled hollow core optical fibre interferometer

2017 ◽  
Author(s):  
Rahul Kumar ◽  
Wai Pang Ng ◽  
Yong-Qing Fu ◽  
Jinhui Yuan ◽  
Chongxiu Yu ◽  
...  
Keyword(s):  
Optical Fibre ◽  
Temperature Sensor ◽  
High Sensitivity ◽  
Hollow Core

scholarly journals Liquid Crystal-Embedded Hollow Core Fiber Temperature Sensor in Fiber Ring Laser

2021 ◽  
Vol 11 (15) ◽  
pp. 7103
Author(s):  
Weihao Lin ◽  
Shengjie Zhou ◽  
Yibin Liu ◽  
Mang I. Vai ◽  
Liyang Shao
Keyword(s):  
Liquid Crystal ◽  
Temperature Variation ◽  
Temperature Sensor ◽  
Ring Laser ◽  
High Sensitivity ◽  
Microbial Culture ◽  
Hollow Core ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Core Fiber

An optical fiber temperature sensor based on Mach–Zehnder interferometer and thermo-optic effect of the liquid crystal (LC) in fiber ring laser (FRL) system is proposed and experimentally demonstrated. The LC is infiltrated into the core of hollow core fiber, and the resonant wavelength is more sensitive to temperature variation due to the interaction between the incident light and the cavity infiltrating liquid crystal with high thermal light coefficient. Meanwhile, the FRL system was further used to make the sensor have good performance in the case of high signal-to-noise ratio (∼35 dB), narrow half-height width (FWHM = 0.15 nm), and high sensitivity in the temperature range from 20 °C to 50 °C, with the maximum sensitivity of 1.318 nm/°C. As far as we know, in the FRL system, the liquid crystal material has a better temperature sensing performance than the previous fiber. Nevertheless, the system has the advantages of good repeatability, low cost, simple production, small volume, high sensitivity. In marine microbial culture and detection, it is necessary to carry out high sensitivity measurement within a small temperature variation range. This reliable and excellent temperature performance has a potential application prospect.

High-Sensitivity SPR Temperature Sensor Based on Hollow-Core Fiber

2020 ◽  
Vol 69 (10) ◽  
pp. 8494-8499 ◽  
Author(s):  
Xue Zhou ◽  
Shuguang Li ◽  
Xuegang Li ◽  
Xin Yan ◽  
Xuenan Zhang ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
High Sensitivity ◽  
Hollow Core ◽  
Core Fiber

High-Sensitivity Temperature Sensor on the Basis of Single-Crystal Si(111) Implanted from Multiple Directions with P+ and B+ Ions

2020 ◽  
Vol 14 (6) ◽  
pp. 1168-1173
Author(s):  
A. S. Rysbaev ◽  
M. T. Normurodov ◽  
A. M. Rakhimov ◽  
Z. A. Tursunmetova ◽  
A. K. Tashatov
Keyword(s):  
Single Crystal ◽  
Temperature Sensor ◽  
High Sensitivity

A temperature sensor based on flexible substrate with ultra-high sensitivity for low temperature measurement

2020 ◽  
Vol 315 ◽  
pp. 112341
Author(s):  
Zhaojun Liu ◽  
Bian Tian ◽  
Xu Fan ◽  
Jiangjiang Liu ◽  
Zhongkai Zhang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Temperature Measurement ◽  
Temperature Sensor ◽  
Flexible Substrate ◽  
High Sensitivity

High-sensitivity fiber optic magnetic field sensor based on lossy mode resonance and hollow core-offset structure

2021 ◽  
pp. 1-12
Author(s):  
Xue-Peng Jin ◽  
Hong-Zhi Sun ◽  
Shuo-Wei Jin ◽  
Wan-Ming Zhao ◽  
Jing-Ren Tang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fiber Optic ◽  
High Sensitivity ◽  
Magnetic Field Sensor ◽  
Hollow Core ◽  
Field Sensor
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