Figure 9
From: Fused silica optical fibers with graded index nanostructured core
Cut-off wavelength and attenuation measurement. (a,b) Mode field distribution registered with the CCD camera at different wavelengths and for different coupling conditions for the fiber #2 and #3, respectively. (c) Bending losses characteristics showing cut-off wavelength of LP11 mode in fiber #2. (d) Optical power at the output of long and short section of fiber #3 and (e) calculated attenuation measured in broad spectral range.
