Base station optical line terminal of passive optical subscriber network using wavelength division multiplexing method and method for manufacturing the same

摘要

A method for manufacturing a plurality of light sources is provided with a low cost to economically construct a passive optical subscriber network of a wavelength division multiplexing method using a wavelength division multiplexing and demultiplexing device. More specifically, disclosed is a method for manufacturing a plurality of light sources with a low cost applying a planar lightwave circuit (PLC) hybrid integrated technology to a PLC chip as a method for constructing a light source with a plurality of wavelengths constituting an optical transmitter of a base station to economically construct a passive optical subscriber network of a wavelength division multiplexing method. The optical transmitter constitutes a hybrid assembly comprising a plurality of semiconductor lasers, a plurality of higher order gratings and a plurality of wavelength division multiplexers.