Measurable refractive index range for a doubly cladding single mode fiber sensor and its application in temperature and humidity sensing

2010 ◽  
Author(s):  
Xiao-Kang Zhang ◽  
Lu Lan ◽  
Zhen Kong ◽  
Lihua Chen ◽  
Zhiren Ye
Keyword(s):  
Refractive Index ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Fiber Sensor ◽  
Humidity Sensing ◽  
Temperature And Humidity

Refractive index and temperature sensing characteristics of an optical fiber sensor based on a tapered single mode fiber/polarization maintaining fiber

2016 ◽  
Vol 14 (5) ◽  
pp. 050604-50608
Author(s):  
Zaihang Yang Zaihang Yang ◽  
Hao Sun Hao Sun ◽  
Tingting Gang Tingting Gang ◽  
Nan Liu Nan Liu ◽  
Jiacheng Li Jiacheng Li ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Temperature Sensing ◽  
Fiber Sensor ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Sensing Characteristics

scholarly journals Highly Sensitive Temperature and Humidity Sensor Based on Carbon Nanotube-Assisted Mismatched Single-Mode Fiber Structure

Micromachines ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 521 ◽  
Author(s):  
Yuan ◽  
Qian ◽  
Liu ◽  
Wang ◽  
Yu
Keyword(s):  
Carbon Nanotube ◽  
Humidity Sensor ◽  
Single Mode ◽  
Small Region ◽  
Single Mode Fiber ◽  
Fiber Structure ◽  
Humidity Sensing ◽  
Highly Sensitive ◽  
Temperature And Humidity ◽  
Stable Performance

Here we report on a miniaturized optical interferometer in one fiber based on two mismatched nodes. The all-fiber structure shows stable performance of temperature and humidity sensing. For temperature sensing in large ranges, from 40 to 100 °C, the sensor has a sensitivity of 0.24 dB/°C, and the adjusted R-squared value of fitting result reaches 0.99461 which shows a reliable sensing result. With carbon nanotubes coating the surface of the fiber, the temperature sensitivity is enhanced from 0.24561 to 1.65282 dB/°C in a small region, and the performance of humidity sensing becomes more linear and applicable. The adjusted R-squared value of the linear fitting line for humidity sensing shows a dramatic increase from 0.71731 to 0.92278 after carbon nanotube coating, and the humidity sensitivity presents 0.02571 nm/%RH.

scholarly journals Optimization Design of SNS Sensor Structural Parameters for Battery Expansion Monitoring

2021 ◽  
Vol 9 ◽  
Author(s):  
Shibo Xu ◽  
Zhe Wang ◽  
Hanrui Yang ◽  
Shengxi Jiao ◽  
Jien Liu ◽  
...  
Keyword(s):  
Refractive Index ◽  
Electrolyte Solution ◽  
Optimization Design ◽  
Structural Parameters ◽  
Single Mode ◽  
Measurement Range ◽  
Single Mode Fiber ◽  
Fiber Sensor ◽  
Sensor Structure ◽  
Core Fiber

In this article, a method to improve refractive index (RI) sensitivity of single‐mode–no core–single‐mode fiber (SNS) sensor structure is addressed by optimization of geometric parameters of no-core fiber (NCF), which could be used to accurately measure the irreversible deformation of the battery expansion state caused by temperature change. From the perspective of temperature changing RI of the electrolyte solution, the impacts of diameter, length, and waveband on the performance of the fiber sensor have been discussed as RI measurement range is 1.340–1.390. After optimization, RI sensitivity can reach approximately 2,252.7 and 2037.3 nm/RIU with the length of 6.55 and 6.75 mm when the RI is from 1.380 to 1.390.

Single-mode fiber sensor based on core-offset splicing

2011 ◽  
Author(s):  
Mei Zhou ◽  
Shenglai Zhen ◽  
Fei Liu ◽  
Jun Peng ◽  
Ling Li ◽  
...  
Keyword(s):  
Single Mode ◽  
Single Mode Fiber ◽  
Fiber Sensor
Sign in / Sign up

Export Citation Format

Share Document