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Probing the Ultimate Limit of Fiber-Optic Strain Sensing

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Probing the Ultimate Limit of Fiber-Optic Strain Sensing

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  • Author: Gianluca Gagliardi
The measurement of relative displacements and deformations is important in many fields such as structural engineering, aerospace, geophysics, and nanotechnology. Optical-fiber sensors have become key tools for strain measurements, with sensitivity limits ranging between 10−9 and 10−6 e (Hz)−1/2 (where e is the fractional length change).

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