9 May 2006 Fiber performance in hydrogen atmosphere at high temperature
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Abstract
Optical losses induced in fibers at 300oC and in hydrogen atmosphere were studied. A non-linear dependence of hydrogen penetration through the carbon coating on hydrogen pressure was observed. It was demonstrated that carbon coating could not defend the fiber from hydrogen penetration for a long time period. At some time, the hydrogen presence in the fiber core resulted in high optical losses in all spectral range in the case of Ge-doped fibers. It was found that the short-wavelength loss edge (SWE) in a Ge-doped fiber co-doped with a small amount of phosphorus was significantly smaller than that in Ge-doped fibers without co-doping. Nevertheless, P-codoping effect did not decrease optical losses related with SWE completely.
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Sergey L. Semjonov, Sergey L. Semjonov, Alexey F. Kosolapov, Alexey F. Kosolapov, Ivan V. Nikolin, Ivan V. Nikolin, Rogerio Ramos, Rogerio Ramos, Vladimir Vaynshteyn, Vladimir Vaynshteyn, Arthur Hartog, Arthur Hartog, } "Fiber performance in hydrogen atmosphere at high temperature", Proc. SPIE 6193, Reliability of Optical Fiber Components, Devices, Systems, and Networks III, 61930N (9 May 2006); doi: 10.1117/12.662602; https://doi.org/10.1117/12.662602
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