Optical splitter is a component of PON network. Its function is to distribute downstream data and concentrate upstream data. A GEPON system usually consists of an OLT (Optical Line Terminal) at the service provider's central office and multiple ONU (Optical Network Units) or ONT (Optical Network Terminals) close to the end user as optical splitters. In addition, the transmission between OLT and ONU/ONT adopts an optical. This disclosurerelates to the field of optical network technologies, and in particular, to a splitting apparatus, a dual-mode optical network unit (ONU), an optical network system, and a communication method. an optical line terminal(OLT) is connected to a splitter by using a feeder fiber, and an. A Passive Optical Network (PON) is a specific type of fiber-optic network that brings high-speed connectivity to end-users without requiring any electrically powered components in the distribution network. The optical network system uses an optical signal coupled to the branch distribution.
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