Telecommunication
What is WDM (wavelength division multiplexing)
online-journals.org/index.php/i-joe/article/download/1637/1747 WDM: Wavelength Division Multiplexing Wavelength Division Multiplexing (WDM) is a technology used in fiber-optic communications that allows multiple optical carrier signals to be sent simultaneously over a single optical fiber by using different wavelengths (colors) of laser light. Essentially, it enables