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

S. Marrujo-García,I. Hernández-Romano,M. Torres-Cisneros,D. A. May-Arrioja,Vladimir P. Minkovich, D. Monzón-Hernández

Frontiers in Optics（2020）

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摘要

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.

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