2 May 2014 Palladium particles embedded into silica optical fibers for hydrogen gas detection
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In this paper, we report the fabrication and characterization of a new concept of optical fibers whose cladding is composed of palladium particles embedded into the silica glass cladding. Since conventional fiber processes are not suitable for such realizations, we developed an original process based on powder technology to prepare our specific preforms. Step, graded index and photonic crystal optical fibers with original shapes were realized. The use of high purity powders as raw materials combined to a specific preforms heat treatment allowed the fabrication of resistant and long length metal-cladding optical fibers. Microstructured Pd-SiO2 composite cladding optical fibers with single-mode behavior and optical losses lower than 2 dB/m at 1530 nm were characterized. Hydrogen-induced attenuation sensitivity of these fibers at the 1245 nm wavelength was demonstrated after long H2 exposure. Dehydrogenation kinetics calculations and experiments were studied.
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Stéphanie Leparmentier, Stéphanie Leparmentier, Jean-Louis Auguste, Jean-Louis Auguste, Georges Humbert, Georges Humbert, Gaëlle Delaizir, Gaëlle Delaizir, Sylvie Delepine-Lesoille, Sylvie Delepine-Lesoille, Johan Bertrand, Johan Bertrand, Stéphane Buschaert, Stéphane Buschaert, Jocelyn Perisse, Jocelyn Perisse, Jean Reynald Macé, Jean Reynald Macé, "Palladium particles embedded into silica optical fibers for hydrogen gas detection", Proc. SPIE 9128, Micro-structured and Specialty Optical Fibres III, 91280H (2 May 2014); doi: 10.1117/12.2054303; https://doi.org/10.1117/12.2054303


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