WAVELENGTH-DIVISION-MULTIPLEXED PASSIVE OPTICAL NETWORK

摘要

A WDMPON(Wavelength-Division-Multiplexed Passive Optical Network) is provided to use LEDs as a light source for optical communication by enabling a central office to have a pump means and enabling a remote node to has an amplifier, thereby realizing a high-quality optical communication service. A WDMPON comprises the followings: an ONU(Optical Network Unit)(400) for transceiving an optical communication service; a remote node(300) which has an amplifier(310) which amplifies a wavelength of light transmitted from the ONP(400); and a central office(100) which receives the amplified light. The central office(100) has a pump means(140) for amplifying the amplifier(310). The ONU(400) comprises LEDs(Light Emitting Diodes) as a light source from which the light is transmitted. The amplifier(310) has an isolator which amplifies only the light from the ONU(400) to the central office(100) and passes the amplified light.