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An Improved FBG Interrogator Considering Fiber Fabry-Perot Tunable Filter Nonlinearity

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Abstract

An improved FBG interrogator for mitigating the effect the nonlinearity, path dependence, and ambient temperature dependence of the FFP filter is proposed and experimentally demonstrated. Experimental results with calibration show twelve times better than those without calibration.

© 2018 The Author(s)

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