Measurement of optical fiber diameter using the fast Fourier transform

1980 ◽  
Vol 19 (12) ◽  
pp. 2031 ◽  
Author(s):  
Mustafa A. G. Abushagur ◽  
Nicholas George
Keyword(s):  
Fourier Transform ◽  
Optical Fiber ◽  
Fast Fourier Transform ◽  
Fiber Diameter

Aqueous contaminant detection via UiO-66 thin film optical fiber sensor platform with fast Fourier transform based spectrum analysis

2017 ◽  
Vol 51 (2) ◽  
pp. 025601 ◽  
Author(s):  
Marziyeh Nazari ◽  
Marta Rubio-Martinez ◽  
Ravichandar Babarao ◽  
Adel Ayad Younis ◽  
Stephen F Collins ◽  
...  
Keyword(s):  
Thin Film ◽  
Fourier Transform ◽  
Optical Fiber ◽  
Fast Fourier Transform ◽  
Spectrum Analysis ◽  
Optical Fiber Sensor ◽  
Fiber Sensor ◽  
Contaminant Detection ◽  
Sensor Platform

scholarly journals Demodulation algorithm for optical fiber fabry-perot interference sensor

2021 ◽  
Vol 336 ◽  
pp. 04010
Author(s):  
Wenhua Wang ◽  
Weina Wu ◽  
Zhengye Xiong ◽  
Wenqing Shi ◽  
Yuanzheng Luo ◽  
...  
Keyword(s):  
Fourier Transform ◽  
High Resolution ◽  
Optical Fiber ◽  
Fast Fourier Transform ◽  
Osmotic Pressure ◽  
Continuous Improvement ◽  
Pressure Measurement ◽  
Cross Correlation ◽  
Fabry Perot

In view of resolution of optical fiber Fabry-Perot (FP) interference sensor, this paper analyses and researches high resolution demodulation algorithms including fast Fourier transform demodulation algorithm, cross-correlation calculation demodulation algorithm, vernier demodulation algorithm. Through continuous improvement, the vernier demodulation algorithm has achieved a resolution of 0.084nm. And it has a resolution of 2.3Pa when the vernier demodulation algorithm was applied to osmotic pressure measurement.

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