Simultaneous measurement of temperature and refractive index with thin-core fiber MZI containing fiber Bragg grating

Abstract

A thin-core fiber based Mach-Zehnder interferometer (MZI) for simultaneous measurement of temperature and refractive index is demonstrated. It is formed by sandwiching a short section of highly germanium-doped fiber between two single-mode fibers and writing a fiber Bragg grating (FBG) on the germanium-doped fiber. Simultaneous measurement is achieved based… (More)

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