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Use of FFT to Increase Measurement Range of a Curvature Sensor Based on a Mach-Zehnder Interferometer

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Abstract

The output signal of Mach-Zehnder curvature sensor was Fourier transformed to increase its curvature range to high value of 1.69 m-1, relative to the traditional fringe contrast measurement 1.09 m-1.

© 2020 The Author(s)

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