If you opt for Fibre Optics, you will use light pulses to transmit data. The light pulses, generated by a laser diode or LED, are transmitted via thin fibre-optic cables, which consist of a core of optically pure glass. The internal reflection of the light allows you to send large amounts of data at higher speeds over longer distances. The flexibility of the fibres allows them to be used in different configurations, increasing their versatility.