Wavelength division multiplexing (WDM) is a technology that combines two or more optical carrier signals of different wavelengths (carrying various information) at the transmitting end through a multiplexer (also called a combiner, Multiplexer) and couples them to the same optical. Wavelength division multiplexing (WDM) is a technology that combines two or more optical carrier signals of different wavelengths (carrying various information) at the transmitting end through a multiplexer (also called a combiner, Multiplexer) and couples them to the same optical. In fiber-optic communications, wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i. This allows multiple channels of data to be transmitted simultaneously. Abstract Wavelength division multiplexing or WDM allows the combining of a number of independent information-carrying wavelengths onto the same fiber, because of the wide spectral region in which optical signals can be transmitted efficiently. The article explains the fundamental principle and its. Optical Source: This generates optical signals of different wavelengths. Commonly used optical sources include laser diodes, semiconductor lasers, and fiber lasers. Typically composed of several wavelength.
