As networks continue to become denser, coarse wave division multiplexing (CWDM) and dense wave division multiplexing (DWDM) offer two effective ways to increase the bandwidth of new and existing fiber deployments by combining optical signals of different wavelengths on one fiber strand. It’s a practical, proven solution. CWDM modules can support up to 18 different wavelength channels on one strand of fiber. DWDM modules support up to 48 wavelength channels on one strand of fiber. Which is right for you? This article explores the differences in cost, technology and whether you need to amplify the signal.
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