Assertion: pulse | /r/CapableOf | degrade signal
Facets:
value: over long distances
type: OTHER
Source sentences:
text: However, dispersion also has an effect in many other circumstances: for example, group velocity dispersion (GVD) causes pulses to spread in optical fibers, degrading signals over long distances; also, a cancellation between group-velocity dispersion and nonlinear effects leads to soliton waves.