Communication Systems 1 Define and briefly explain dispersio

Communication Systems

1- Define and briefly explain dispersion that happens due to material properties varying with frequency. Name one material that has material properties that change with frequency and present any related data (reference the sources where you find this info).

Solution

Dispersion is change in refractive index of a material depends on wavelengthso each frequency component actually travels at a slightly different speed.

As a result as the distance increases pulse become broader.

Example for dispersion is a rainbow in which dispersion causes the spatial separation of a white light into components of different wavelengths.