Published on Nov 27, 2017, Updated on April 24, 2023 Table of Contents What is DWDM? DWDM refers to Dense Wavelength Division Multiplexing. The technology supports multiplexed transmission of multiple optical wavelengths in a single fiber strand. Similar to CWDM, DWDM is also a form of WDM technology. However, by defining smaller wavelength spacing, it … Continue reading What is DWDM? A Beginner Guide (2023)