Abstract
An alumino–germano–silica glass fiber doped with silicon
nanoparticles and erbium ions was fabricated using the modified chemical vapor
deposition (MCVD) method. Optical properties of the glass fiber were investigated
using a Judd–Ofelt analysis. It was found that incorporating silicon
nanoparticles with erbium ions did not alter Er-related optical properties
of the silica glass fiber. The incorporation of silicon particles in a fiber
core caused wide band absorption from 480 nm to 1200 nm. A third order optical
nonlinearity of the Si–Er-doped alumino–germano–silica glass
fiber was measured to be about 3.8$\,\times
{\hbox {10}} ^{-15} ~{\hbox {m}}^{2} /{\hbox {W}}$.
© 2009 IEEE
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