Dense Wave Division Multiplexing

Dense Wave Division Multiplexing (DWDM) is a technology used in fiber optic networks to increase data transmission capacity. It works by sending multiple signals simultaneously over the same optical fiber, each on a different wavelength (or color) of light. Think of it like a highway with multiple lanes, where each lane carries a different stream of traffic. This allows for efficient use of the fiber, enabling high-speed communication, such as internet and phone services, to happen at once without interference, significantly boosting the amount of information that can be transmitted over existing infrastructure.