Absolute phase measurement in extrinsic Fabry-Perot optical fiber sensors using multiple path-match conditions

1997 ◽  
Vol 37 (1) ◽  
pp. 26-32 ◽  
Author(s):  
C. -C. Chang ◽  
J. Sirkis
Keyword(s):  
Optical Fiber ◽  
Phase Measurement ◽  
Optical Fiber Sensors ◽  
Fiber Sensors ◽  
Multiple Path ◽  
Absolute Phase ◽  
Fabry Perot

Optical fiber sensors based on Fabry-Perot multilayer coatings

2010 ◽  
Vol 8 (S1) ◽  
pp. 189-191 ◽  
Author(s):  
杨明红 Minghong Yang ◽  
孙艳 Yan Sun ◽  
李小兵 Xiaobin Li ◽  
姜德生 Desheng Jiang
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensors ◽  
Multilayer Coatings ◽  
Fiber Sensors ◽  
Fabry Perot

scholarly journals Vibration Detection Using Optical Fiber Sensors

2010 ◽  
Vol 2010 ◽  
pp. 1-12 ◽  
Author(s):  
Yoany Rodríguez García ◽  
Jesús M. Corres ◽  
Javier Goicoechea
Keyword(s):  
Optical Fiber ◽  
Electromagnetic Interference ◽  
Optical Fiber Sensors ◽  
Negative Influence ◽  
Physical Parameters ◽  
Real Problem ◽  
Noisy Environments ◽  
Fiber Sensors ◽  
Fabry Perot ◽  
Electromechanical Equipment

Condition monitoring of heavy electromechanical equipment is commonly accomplished in the industry using vibration analysis. Several techniques, mainly based on capacitive and piezoelectric accelerometers, have been applied for predictive maintenance. However, the negative influence of the electromagnetic interference (EMI) can be a real problem when electrical signals are used to detect and transmit physical parameters in noisy environments such as electric power generator plants with high levels of EMI. Optical fiber sensors are increasingly used because of the nonelectrical nature of signals. In this paper, the most frequently used vibration optical fiber sensors will be reviewed, classifying them by the sensing techniques and measurement principles. The main techniques, intensity modulation, fiber bragg gratings and Fabry-Pérot Interferometry, will be reviewed here.

Effect of Dopant Diffusion on the Long-Term Stability of Fabry–Pérot Optical Fiber Sensors

2017 ◽  
Vol 35 (24) ◽  
pp. 5317-5323 ◽  
Author(s):  
Dimitrios Polyzos ◽  
Jinesh Mathew ◽  
William N. MacPherson ◽  
Robert R. J. Maier
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensors ◽  
Dopant Diffusion ◽  
Fiber Sensors ◽  
Term Stability ◽  
Long Term Stability ◽  
Fabry Perot
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