Refractive index insensitive temperature sensor based on hollow annular core fiber Mach-Zehnder interferometer

2014 ◽  
Author(s):  
Yaxun Zhang ◽  
Ai Zhou ◽  
Quan Xu ◽  
Boyang Qin ◽  
Zhihai Liu
Keyword(s):  
Refractive Index ◽  
Temperature Sensor ◽  
Zehnder Interferometer ◽  
Core Fiber ◽  
Mach Zehnder Interferometer

Refractive index and temperature sensor based on optical fiber Mach–Zehnder interferometer with trapezoid cone

2019 ◽  
Vol 58 (05) ◽  
pp. 1 ◽  
Author(s):  
Wenlin Gao ◽  
Weihua Zhang ◽  
Zhengrong Tong ◽  
Yimei Zhong ◽  
Juan Qin ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Temperature Sensor ◽  
Zehnder Interferometer ◽  
Mach Zehnder Interferometer

Enhanced refractive index and temperature sensor based on balloon-shaped Mach-Zehnder interferometer

2021 ◽  
Vol 65 ◽  
pp. 102615
Author(s):  
Tutao Wang ◽  
Bo Liu ◽  
Lilong Zhao ◽  
Yongfeng Wu ◽  
Yang Han ◽  
...  
Keyword(s):  
Refractive Index ◽  
Temperature Sensor ◽  
Zehnder Interferometer ◽  
Mach Zehnder Interferometer

Refractive index and temperature sensor based on Mach-Zehnder interferometer with thin fibers

2020 ◽  
Vol 54 ◽  
pp. 102101
Author(s):  
Wei Liu ◽  
Xuqiang Wu ◽  
Gang Zhang ◽  
Shili Li ◽  
Cheng Zuo ◽  
...  
Keyword(s):  
Refractive Index ◽  
Temperature Sensor ◽  
Zehnder Interferometer ◽  
Mach Zehnder Interferometer

scholarly journals Dual Demodulation of Temperature and Refractive Index Using Ring Core Fiber Based Mach-Zehnder Interferometer

Micromachines ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 258
Author(s):  
Weihao Yuan ◽  
Changyuan Yu
Keyword(s):  
Refractive Index ◽  
Extinction Ratio ◽  
Linear Equations ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Zehnder Interferometer ◽  
Wavelength Shift ◽  
Core Fiber ◽  
Ring Core ◽  
Mach Zehnder Interferometer

We report the ring core fiber spliced with single mode fiber and no core fiber which is used for temperature and refractive index (RI) sensing. The Mach-Zehnder interferometer (MZI) is formed with this kind of sandwich fiber structure and the maximum extinction ratio of the interference spectra reaches 27 dB with the free spectra range of 12 nm. The MZI fiber sensor is applied for temperature sensing with the sensitivity of 69 pm/°C and 0.051 dB/°C. The RI sensitivity reaches 182.07 dB/RIU and −31.44 nm/RIU with the RI ranging from 1.33 to 1.38. The RI value can be directly demodulated with the interference dip intensity which shows insensitivity to temperature. The demodulation of temperature can be achieved by using the linear equations between dip wavelength shift with the variation of temperature and RI.

Refractive index Mach–Zehnder interferometer sensor based on tapered no-core fiber

Laser Physics ◽  
2021 ◽  
Vol 31 (4) ◽  
pp. 045101
Author(s):  
Yeming Zhao ◽  
Zhengrong Tong ◽  
Weihua Zhang ◽  
Jietong Zhang ◽  
Jiaxin Li ◽  
...  
Keyword(s):  
Refractive Index ◽  
Zehnder Interferometer ◽  
Core Fiber ◽  
Mach Zehnder Interferometer
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