Dense Wave Division Multiplexing. Frequency-domain multiplexing in the optical domain, whereby thousands of digitized streams are imposed on different frequencies or colors of laser light and launched simultaneously down an optical fiber. Frequency-discriminating detectors at the destination sort out each carrier color and decode the date. DWDM is used by telecoms to dramatically increase the payload capacity of in-place fiber.

« Back to Glossary Index
%d bloggers like this: