What is the major benefit of implementing Wavelength Division Multiplexing (WDM) technology?

Implementing Wavelength Division Multiplexing (WDM) technology significantly increases the capacity of existing fiber networks without the need to lay additional fiber cables. WDM works by allowing multiple wavelengths (or channels) of light to be transmitted simultaneously over a single strand of fiber optics. Each wavelength can carry its own data stream, enabling a substantial boost in network capacity.

For instance, if a single fiber can support multiple wavelengths, it can effectively multiply the data carrying capacity of that single fiber, thereby achieving a tenfold increase or more, depending on the technology used and the number of wavelengths multiplexed. This capability is crucial as it allows network operators to maximize the use of existing infrastructure without incurring the expenses and complexities associated with deploying additional fiber routes.

While the other options may contain elements that pertain to fiber optic technology, they do not embody the primary advantage that WDM provides. Simplifying fiber management and enhancing signal strength are valuable, but they are not the core innovative feature that defines WDM technology. Similarly, the option regarding the addition of new fiber routes does not leverage the inherent strengths of WDM, which focus on optimizing existing resources rather than expanding physical infrastructure.