RFoG delivers the same services as an RF/DOCSIS/HFC network, with the added benefit of improved noise performance and increased usable RF spectrum in both the downstream and return-path directions.
RFoG allows service providers to continue to leverage traditional HFC equipment and back-office applications with the new FTTP deployments.
These electrical signals are then converted to optical ones, and transported via a 1550 nm wavelength through a wavelength-division multiplexing (WDM) platform and a passive splitter to a fiber-optic micro-node located at the customer premises.
The fiber-optic micro-nodes – which are also referred to as RFoG optical-networking units (R-ONUs) – terminate the fiber connection and convert traffic for delivery over the in-home network.
When the network is upgraded, the RFoG elements can remain in place while the provider rolls out the necessary components (OLTs and ONTs) for a full PON implementation.