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Twist Sensor Based on Long-Period Grating Mach-Zehnder Interferometer at 2-μm Waveband

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Abstract

We demonstrate the fabrication of Mach-Zehnder interferometer twist sensor based on the cascaded long-period fiber gratings operating at 2-μm waveband. The torsion sensitivities of wavelength and intensity are 0.333 nm/(rad/m) and -1.095 dB/(rad/m), respectively.

© 2021 The Author(s)

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