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

S. Marrujo-García,Ivan Hernandez-Romano,Miguel Torres Cisneros,Daniel A. May-Arrioja,Vladimir P. Minkovich,David Monzón-Hernández

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

2020

S. Marrujo-García
Ivan Hernandez-Romano
Miguel Torres Cisneros
Daniel A. May-Arrioja
Vladimir P. Minkovich
David Monzón-Hernández

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.

Keywords:

Fast Fourier transform
Optics
Fiber optic sensor
Curvature
Fourier transform
Mach–Zehnder interferometer
Physics

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