WAVELENGTH DIVISION MULTIPLXED PASSIVE OPTICAL NETWORK APPARATUS

摘要

PURPOSE: A wavelength division multiplexed passive optical network apparatus is provided to adopt a wavelength independent light source and a chirped brag grating as the light source of a subscriber interface unit and a center BS(Base Station). CONSTITUTION: A multiplexer(118a) multiplexes the light signal of a light source unit(112a), and a chirped brag grating(124a) is connected to the other end of the multiplexer. The chirped brag grid reflects the light passing through the multiplexer. The brag grating inputs the certain portion of the light as the multiplexer and the light sources again. The multiplexer performs spectrum slicing of re-inputted light, and operates the light source by considering a channel wavelength as a main oscillation wavelength.