ETERN launched heatless Arrayed Waveguide Grating (AAWG) is based on planar optical waveguide PLC technology, independent core technology, from the AWG chip design flow, packaging and testing, to the module design, coupling, packaging and testing, to achieve the whole process of core technology localization. At present, we have mass production of 100GHz, 150GHz, single chip 50GHz, which is used for multiplexing/demultiplexing of Dense Wavelength Division Multiplexing (DWDM) system.