ELI5: Explain Like I'm 5

Optical communication

Optical communication is a way of using light to send messages. It's like using a flashlight: you point the flashlight at something, turn it on, and the light can be used to carry messages from one place to another. Think of the light from a flashlight as carrying a message over a long distance. Optical communication is used in lots of places, like at home, in the office, and in your car. Optical communication can send information faster and over longer distances than other types of communication. In many cases, it's more reliable and secure than other types.