Refers to the broadening of a pulse, only due to spectral width of the source, after traveling a distance in the fiber. Chromatic dispersion is the linear sum of material dispersion, waveguide dispersion and profile dispersion.
The temporal spreading of a pulse in an optical waveguide caused by the wavelength dependence of the velocities of light.
Pulse spreading in an optical fibre caused by a variation in light propagation with wavelength. The sum of waveguide dispersion and material dispersion.
The speed of an optical pulse travelling in a fibre changes as its wavelength changes. Since any practical light source has a certain spectral width, this effect results in pulse broadening called chromatic dispersion. Chromatic dispersion can be measured by the measurement of travel time at different wavelengths.
Different wavelengths travel along an optical medium at different speeds. Wavelengths reach the end of the medium at different times, causing the light pulse to spread. This chromatic dispersion is expressed in picoseconds (of dispersion) per kilometer (of length) per nanometer (of source bandwidth). It is the sum of material and waveguide dispersion.
Reduced fiber bandwidth caused by different wavelengths of light traveling at different speeds down the optical fiber. Chromatic dispersion occurs because the speed at which an optical pulse travels depends on its wavelength, a property inherent to all optical fiber. May be caused by material dispersion, waveguide dispersion, and profile dispersion.