It covers key advantages such as security, immunity to electromagnetic interference, lightweight design, high bandwidth, and safety, along with the nature of light and its role in fiber-optic communication. Fiber optics is a relatively recent development in the electronics world and has met. There are two main types of cores employed in Fiber optics: a) Glass (Silica Core): These glass Fibers are composed of high-purity silica glass (SiO₂), the type used in most telecommunications and internet connections. It enables data transmission over hundreds of kilometres with minimal signal. Fiber-optic communication is a method of transmitting data from one point to another by sending infrared light pulses through an optical fibre. Light acts as a carrier wave and can be modulated to carry information. Each data transfer medium presents unique benefits and limitations that impact system design. Optical fibers are also resistant to. By transmitting information as pulses of light through tiny, flexible glass fibres, it has drastically improved data transfer speeds, bandwidth capacity and reliability, far outpacing traditional copper cabling.