Vapor axial deposition (Continued )
rare earth-doped fiber fabrication,
202–209
W
Water peak loss, see Zero water peak fiber
Waveguide dispersion
definition, 38, 42
group delay equation, 42
multilayer index profiles, 44–45
wavelength dependence, 43–44
Weapon systems, development, 3
Weibull statistics, tensile strength,
753–754
X
XPM, see Cross-phase modulation
Y
Ytterbium-doped fiber
co-doped Er/Yb systems, 222–223,
689–690
large-mode-area fiber lasers
advantages, 673–675
bend loss, 676
diameter limits, 675–676
near-field spatial profile, 677
numerical aperture, 675–676, 678
stimulated Brilloun scattering,
678–679
photo-darkening, 231–234
Z
Zero water peak fiber
applications, 134
fabrication, 134–137
hydrogen aging loss, 139–141
performance maintenance, 137–138
strength