What is another word for wavelength-division multiplexing?
Pronunciation: [wˈe͡ɪvlɛŋθdɪvˈɪʒən mˈʌltɪplˌɛksɪŋ] (IPA) 
Wavelength-division multiplexing (WDM) is a technology that allows multiple signals to be transmitted over a single fiber optic cable through the use of different wavelengths of light. However, there are several synonyms for WDM, including wavelength-selective switching (WSS), dense wavelength-division multiplexing (DWDM), coarse wavelength-division multiplexing (CWDM), and optical frequency-division multiplexing (OFDM). These synonyms are often used interchangeably, but each refers to a specific type of WDM technology that varies in the number of channels supported, the spacing between wavelengths, and the level of signal processing required. Overall, WDM and its synonyms have revolutionized the ability to transmit large amounts of data over long distances with high speed and reliability.
