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Demultiplexing of Interferometrically Interrogated Fiber Bragg Grating Sensors: FFT vs MUSIC

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We describe an interferometric technique for the demodulation of serial fiber Bragg grating sensor arrays, yielding absolute measurement of the individual grating mean wavelengths. We compare two methods for decoding the Bragg wavelengths of gratings.

© 2006 IEICE

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