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JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
卷 26, 期 8, 页码 1614-1620出版社
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.26.001614
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We estimate the effect of Ge doping on the acoustic damping coefficient of silica fibers. We show that an acoustically multimode fiber with a characteristic central index dip, such as that observed in modified chemical-vapor deposition (MCVD)-type fibers, can provide adequate data for a reasonable estimation. This may result from the fact that the scattering integral of each acoustic mode in such a waveguide is strongly position-dependent in the radial direction where there is a varying Ge content. (C) 2009 Optical Society of America
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