What is a distinctive feature of WDM-PON technology?

In Wavelength Division Multiplexing Passive Optical Network (WDM-PON) technology, a distinctive feature is that it provides each subscriber with their own designated wavelength in a greenfield system. This characteristic allows for a more efficient use of the available spectral range, enabling higher capacity and dedicated bandwidth for individual subscribers. In a greenfield deployment, a new optical network is created from scratch, allowing for ideal conditions that maximize performance and scalability.

By assigning a specific wavelength to each subscriber, WDM-PON ensures that users can enjoy higher data rates and potentially improved service quality since they are not competing for bandwidth on a shared wavelength. This approach also enhances the overall network efficiency by minimizing interference and optimizing signal integrity.

In contrast, other options do not accurately represent the key features of WDM-PON technology. For instance, the idea of assigning multiple subscribers to one wavelength is not characteristic of WDM-PON’s dedicated wavelength feature. Similarly, limiting deployment to upgraded systems or using a star topology is not reflective of the unique advantages that WDM-PON brings to a new installation or its operational capabilities.