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Random Fiber Gratings Fabricated Using Fs-IR Laser for Distributed Temperature Sensor Application

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Abstract

By using the plane-by-plane grating inscription method with a fs-IR laser, random fiber gratings were fabricated in SMF-28 fiber with different phase shifts between different planes for temperature sensing. With the well-defined bandwidth of the enhanced backscattering, the random grating based distributed temperature sensing system shows high accuracy of temperature measurement and low laser-induced loss.

© 2018 The Author(s)

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