

At the receiver end, every channel is demultiplexed into original source, therefore different data formats with different data rates such as Internet data, Synchronous Optical Network data (SONET), and asynchronous transfer mode (ATM) data can be transmitted together at the same time through one optical fiber.

The data from various different sources is put together on optical fiber in which each signal travels at the same speed on its own light wavelength.

The “dense” here refers to the fact that DWDM technology supports more than 80 separate wavelengths, each about 0.8 of a nanometer (nm) wide on a single optical fiber.ĭWDM technology increases the network capacity and makes efficient use of bandwidth. What Is DWDM Technology - Data in a RainbowĭWDM stands for Dense Wavelength Division Multiplexing, which is an optical multiplexing technology used to increase bandwidth over existing fiber optic backbones.
