High Accuracy, Multi-Signal Demodulation Method for Distributed, Wide-Frequency Domain Optical Fiber Sensing

2021 ◽  
Author(s):  
Zhiguo Wang ◽  
Zhanyu Shen ◽  
Ziji Wang ◽  
Jiru Zhang ◽  
Jinjin Zhao ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Frequency Domain ◽  
High Accuracy ◽  
Fiber Sensing ◽  
Signal Demodulation ◽  
Optical Fiber Sensing ◽  
Demodulation Method

scholarly journals High-accuracy distributed temperature measurement using difference sensitive-temperature compensation for Raman-based optical fiber sensing

2019 ◽  
Vol 27 (25) ◽  
pp. 36183 ◽  
Author(s):  
Jian Li ◽  
Qian Zhang ◽  
Yang Xu ◽  
Mingjiang Zhang ◽  
Jianzhong Zhang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Temperature Measurement ◽  
Temperature Compensation ◽  
High Accuracy ◽  
Fiber Sensing ◽  
Optical Fiber Sensing

HIGH ACCURACY OPTICAL BISTABLE INTERFEROMETRIC FIBER SENSORS

2002 ◽  
Vol 11 (02) ◽  
pp. 125-130 ◽  
Author(s):  
CHUNFEI LI ◽  
FEI ZHOU ◽  
KUN YANG
Keyword(s):  
Optical Fiber ◽  
Optical Bistability ◽  
High Accuracy ◽  
Fiber Sensor ◽  
Fiber Sensors ◽  
Fiber Sensing ◽  
Electrical Pulses ◽  
Optical Fiber Sensing ◽  
Bistable Device ◽  
Interferometric Sensor

A novel optical fiber sensing technique for length and temperature measurement with accuracy of sub-nanometer and 10-4° C , respectively, is proposed. The new kind of sensor is a combination of a conventional interferometric sensor and a hybrid optical bistable device. The measurement is accomplished by counting the number of electrical pulses, provided by switching on and switching off of the optical bistability periodically. An optical bistable fiber sensor with a March–Zehnder interferometer is analyzed in this paper. The main advantages of this technique lie in the adjustable high accuracy and ability to distinguish the variation direction of quantities to be measured.

Micro-Cavity Array With High Accuracy for Fully Distributed Optical Fiber Sensing

2019 ◽  
Vol 37 (3) ◽  
pp. 927-932 ◽  
Author(s):  
Changjia Wang ◽  
Zhengying Li ◽  
Xin Gui ◽  
Xuelei Fu ◽  
Fan Wang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
High Accuracy ◽  
Fiber Sensing ◽  
Optical Fiber Sensing ◽  
Distributed Optical Fiber ◽  
Micro Cavity ◽  
Cavity Array

scholarly journals Fast Hotspot Detection in SFCLs by Exploiting Strain Response in Optical Fiber Sensing

2021 ◽  
pp. 1-1
Author(s):  
Arooj Akbar ◽  
Nicolo' Riva ◽  
Zhisheng Yang ◽  
Luc Thevenaz ◽  
Bertrand Dutoit
Keyword(s):  
Optical Fiber ◽  
Strain Response ◽  
Hotspot Detection ◽  
Fiber Sensing ◽  
Optical Fiber Sensing
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