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

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.

scholarly journals High-Sensitivity Temperature Sensor Based on Microsphere Cavity in Super Larger Thermo-Optic Coefficient Germanium-core Fiber

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 182658-182663 ◽  
Author(s):  
Zhiyang Wu ◽  
Shuang Wang ◽  
Junfeng Jiang ◽  
Kun Liu ◽  
Tiegen Liu
Keyword(s):  
Temperature Sensor ◽  
High Sensitivity ◽  
Core Fiber

scholarly journals In-Line Mach–Zehnder Interferometers Based on a Capillary Hollow-Core Fiber Using Vernier Effect for a Highly Sensitive Temperature Sensor

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5471
Author(s):  
Sigifredo Marrujo-García ◽  
Iván Hernández-Romano ◽  
Daniel A. May-Arrioja ◽  
Vladimir P. Minkovich ◽  
Miguel Torres-Cisneros
Keyword(s):  
Temperature Sensitivity ◽  
Temperature Sensor ◽  
Hollow Core ◽  
Multimode Fibers ◽  
Highly Sensitive ◽  
Attractive Candidate ◽  
Working Principle ◽  
Core Fiber ◽  
Vernier Effect ◽  
Insight Into

In this paper, we propose a highly sensitive temperature sensor based on two cascaded Mach–Zehnder interferometers (MZIs) that work using the Vernier effect. The all-fiber MZIs were assembled by splicing a segment of capillary hollow-core fiber (CHCF) between two sections of multimode fibers (MMFs). This cascaded configuration exhibits a temperature sensitivity of 1.964 nm/°C in a range from 10 to 70 °C, which is ~67.03 times higher than the sensitivity of the single MZI. Moreover, this device exhibits a high-temperature resolution of 0.0153 °C. A numerical analysis was carried out to estimate the devices’ temperature sensitivity and calculate the magnification of the sensitivity produced by the Vernier effect. The numerical results have an excellent agreement with the experimental results and provide a better insight into the working principle of the MZI devices. The sensor’s performance, small size, and easy fabrication make us believe that it is an attractive candidate for temperature measurement in biological applications.

Spectrum ameliorative optical fiber temperature sensor based on hollow-core fiber and inner zinc oxide film

2017 ◽  
Vol 245 ◽  
pp. 423-427 ◽  
Author(s):  
Hao Sun ◽  
Hao Luo ◽  
Xin Wu ◽  
Lei Liang ◽  
Yucheng Wang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Oxide Film ◽  
Optical Fiber ◽  
Temperature Sensor ◽  
Zinc Oxide Film ◽  
Hollow Core ◽  
Core Fiber

scholarly journals In-Fiber BaTiO3 Microsphere Resonator for High-Sensitivity Temperature Measurement

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 318
Author(s):  
Chi Li ◽  
Meng Zhu ◽  
Peng Ji ◽  
Cong Xiong ◽  
Changrui Liao
Keyword(s):  
Fiber Optic ◽  
Temperature Response ◽  
High Sensitivity ◽  
Single Mode ◽  
Whispering Gallery Mode ◽  
Transmission Spectra ◽  
Hollow Core ◽  
Polymer Waveguide ◽  
Whispering Gallery ◽  
Core Fiber

A fiber optic whispering gallery mode (WGM) resonator was proposed and realized by integrating an inline polymer waveguide with a microsphere mounted on it. The polymer waveguide with a diameter of 1 μm was printed with femtosecond laser-assisted multiphoton polymerization in a section of a grooved hollow-core fiber, which was sandwiched between two single-mode fibers. Two WGW resonators assembled with microspheres of different sizes were prepared. The transmission spectra of those stimulated WGMs were investigated both in simulation and experimentally. The temperature response of the resonators was particularly studied, and a linear sensitivity of −593 pm/°C was achieved from 20 °C to 100 °C.

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