Figure 1
From: Fused silica optical fibers with graded index nanostructured core
Refractive index profiles and values. (a) Radial index profile for the discussed fibers. (b) Refractive index for two glasses: pure (red) and 4.9% mol GeO2 doped (blue) silica and the refractive index difference Δn (inset: black) in a function of wavelength.
