Optimization of the Fringe Contrast of an Interference Pattern of a Mach-Zehnder Interferometer and Its Use as a Curvature Sensor

A Mach-Zehnder curvature sensor with enhanced contrast based on lateral-offset splicing is proposed. The highest contrast was obtained at 2 µm lateral-offset. Using the Fourier Transform, amplitude changes were traced from 0 m-1 to 2.68 m-1.