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Linear-in-distance resonance frequency mapping for quasi-distributed measurement based on an identical weak fiber Bragg grating array

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Abstract

This paper reports the real-time linear-in-distance sampling for a resonance frequency mapping system based on an identical weak fiber Bragg grating (FBG) array. Based on a function of an external clock for the sampling timing of uniform distance spacing, 100 identical weak FBGs could be interrogatedexamined with a high linearity of 0.9996 (R2).

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