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Characterization of Fiber Bragg Gratings using a 3D Quantitative Phase Imaging Approach

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Abstract

Quantitative Phase Imaging (QPI) is used to recover 3D refractive index (RI) distributions of Fiber Bragg Gratings (FBGs), revealing high-spatial-frequency patterns. Additionally, quantitative comparisons are made with theoretical calculations.

© 2019 The Author(s)

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