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Employing the multiple spatially independent channels offered by multicore fiber (MCF), spatial-division multiplexed (SDM) hybrid Raman and Brillouin distributed sensor has been demonstrated. The interrogation of Raman and Brillouin scattering are performed in distinct cores of the MCF, allowing for flexible management of the input powers between each of them, which is actually incompatible in hybrid...
We proposed a novel multi-parameter sensor with in-line Mach-Zehnder interferometer in multicore fibers to measure the temperature and strain simultaneously. The cross sensitivities are eliminated and the relative measurement error is less than 5%.
We propose and demonstrate a novel spatial-division multiplexed Mach–Zehnder interferometer (MZI) structure in heterogeneous multicore fiber (MCF) for simultaneous measurement of temperature and strain. The MZI structure is constituted of dual-tapered regions along heterogeneous MCF by using electrical arc discharge. Different spatial channels (cores) in heterogeneous MCF have dissimilar responses...
In this paper, a high-temperature fiber sensor based on an optical fiber Fabry–Perot interferometer is fabricated by splicing a section of simplified hollow-core fiber between two single-mode fibers (SMFs) and cleaving one of the two SMFs to a certain length. With the superposition of three beams of light reflected from two splicing joints and end face of the cleaved SMF, the modified Vernier effect...
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