Enhancing the Multiplexing Capabilities of Sensing Networks Using Spectrally Encoded Fiber Bragg Grating Sensors

We have proposed a technique to design spectrally encoded fiber Bragg grating (FBG) sensors allowing overlapping between two or more sensors in the same spectral region. A theoretical description of the design and the identification function for the proposed sensors has been developed. Simulation of...

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Bibliographic Details
Published in:Journal of lightwave technology 2016-10, Vol.34 (19), p.4466-4472
Main Authors: Triana, Cristian Andres, Pastor, Daniel, Varon, Margarita
Format: Article
Language:English
Subjects:
Demodulation
fiber Bragg grating
Fiber gratings
optical fiber sensor
Optical sensors
overlap
Sensor phenomena and characterization
Shape
spectral encoding
Spectral shape
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Summary:We have proposed a technique to design spectrally encoded fiber Bragg grating (FBG) sensors allowing overlapping between two or more sensors in the same spectral region. A theoretical description of the design and the identification function for the proposed sensors has been developed. Simulation of the encoded FBG sensors was carried out to validate their overlap-proof behavior. Finally, the proposed sensors were manufactured and validated experimentally to show the compatibility between our encoding technique and traditional WDM multiplexing. Furthermore, the error of the proposed interrogation system was measured and discussed.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2016.2537362