抄録
Explosive growth in the internet traffic makes developments of integrated photonic devices important issue to actualize the next generation photonic systems. Enormous number of devices that will be needed in the systems implies that integrated devices are indispensable components to make the system with a reasonable cost and space. Starting from the simple integrated device containing a DFB laser and an EA-modulator, various kind of integrated photonic devices have been developed with hybrid and monolithic technologies. This paper reviews recent progress of semiconductor integrated light sources for DWDM communications systems.
