DWDM (Dense Wavelength Division Multiplexing)

Dense Wavelength Division Multiplexing (DWDM) is a technology used in fiber optic communication that allows multiple data signals to be sent simultaneously over a single optical fiber. It achieves this by using different wavelengths (colors) of light for each signal, much like how different channels are used on a TV. This increases the capacity of the fiber, enabling it to carry vast amounts of data over long distances without significant loss. DWDM is essential for high-speed internet and telecommunications, making it efficient for data-heavy applications like streaming and cloud services.