Optical technology
A Fibre optic cable is made of incredibly thin strands of glass or plastic called optical Fibres; one cable will have as few as two strands or as several as many hundred. Every strand is less than a tenth as thick as a human hair and may carry something like 25,000 telephone calls, therefore a whole Fibre optic cable will simply carry many million calls.
Fibre-optic cables carry data between two places victimization entirely optical (light-based) technology. Suppose you needed to send data from your pc to a friend's house down the road using Fibre optics. You may hook your pc up to a laser, which might convert electrical data from the pc into a series of light pulses. Then you'd fire the laser down the Fibre optic patch cables. When traveling down the cable, the light beams would emerge at the opposite end. Your friend would need a photoconductive cell (light-detecting component) to turn the pulses of light into electrical data his or her pc may perceive. Therefore the whole equipment would be sort of an extremely neat, advanced version of the sort of telephone you'll comprehend of two baked-bean cans and a length of string!