| Waveguide
Dispersion |
In
cases where light is launched into an optical fiber,
backreflection refers to the light that is returned
to the launch point. |
| Wavelength
division multiplexing (WDM) |
The
return of a portion of scattered light to the input
end of a fiber; the scattering of light in the direction
opposite to its original propagation. |
| Working
margin |
A high-speed
transmission system used to connect relatively distant
points. Backbone networks can be used to join autonomous
networks within buildings or between different buildings |
